20655993904

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:233

約数の個数: 360

約数和(自身を含む): 53641709568

約数和(自身を除く): 32985715664

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 47, 49, 52, 56, 62, 91, 94, 98, 104, 107, 112, 124, 169, 182, 188, 196, 208, 214, 217, 248, 329, 338, 364, 376, 392, 403, 428, 434, 496, 611, 637, 658, 676, 728, 749, 752, 784, 806, 856, 868, 1183, 1222, 1274, 1316, 1352, 1391, 1456, 1457, 1498, 1519, 1612, 1712, 1736, 2303, 2366, 2444, 2548, 2632, 2704, 2782, 2821, 2914, 2996, 3038, 3224, 3317, 3472, 4277, 4606, 4732, 4888, 5029, 5096, 5239, 5243, 5264, 5564, 5642, 5828, 5992, 6076, 6448, 6634, 7943, 8281, 8554, 9212, 9464, 9737, 9776, 10058, 10192, 10199, 10478, 10486, 11128, 11284, 11656, 11984, 12152, 13268, 15886, 16562, 17108, 18083, 18424, 18928, 18941, 19474, 19747, 20116, 20398, 20956, 20972, 22256, 22568, 23219, 23312, 24304, 26536, 29939, 31772, 33124, 34216, 35203, 36166, 36673, 36848, 37882, 38948, 39494, 40232, 40796, 41912, 41944, 43121, 45136, 46438, 53072, 55601, 59878, 63544, 65377, 66248, 68159, 68432, 70406, 71393, 72332, 73346, 75764, 77896, 78988, 80464, 81592, 83824, 83888, 86242, 92876, 111202, 119756, 126581, 127088, 130754, 132496, 132587, 136318, 140812, 142786, 144664, 146692, 151528, 155792, 155899, 157976, 162533, 163184, 172484, 185752, 222404, 239512, 246233, 246421, 253162, 256711, 261508, 265174, 272636, 281624, 285572, 289328, 293384, 301847, 303056, 311798, 315952, 325066, 344968, 371504, 389207, 444808, 457639, 479024, 492466, 492842, 506324, 513422, 523016, 530348, 545272, 560573, 563248, 571144, 586768, 603694, 623596, 650132, 689936, 778414, 849901, 886067, 889616, 915278, 928109, 984932, 985684, 1012648, 1026844, 1046032, 1060696, 1090544, 1091293, 1121146, 1142288, 1207388, 1247192, 1300264, 1556828, 1699802, 1723631, 1772134, 1830556, 1856218, 1969864, 1971368, 2025296, 2026687, 2053688, 2112929, 2121392, 2182586, 2242292, 2414776, 2494384, 2600528, 3113656, 3203473, 3399604, 3447262, 3544268, 3661112, 3712436, 3924011, 3939728, 3942736, 4053374, 4107376, 4225858, 4365172, 4484584, 4829552, 5949307, 6227312, 6406946, 6799208, 6894524, 7088536, 7322224, 7424872, 7639051, 7848022, 8106748, 8451716, 8730344, 8969168, 11898614, 12065417, 12813892, 13598416, 13789048, 14177072, 14186809, 14849744, 15278102, 15696044, 16213496, 16903432, 17460688, 23797228, 24130834, 25627784, 26346931, 27468077, 27578096, 28373618, 30556204, 31392088, 32426992, 33806864, 41645149, 47594456, 48261668, 51255568, 52693862, 54936154, 56747236, 61112408, 62784176, 83290298, 95188912, 96523336, 99307663, 105387724, 109872308, 113494472, 122224816, 166580596, 184428517, 193046672, 198615326, 210775448, 219744616, 226988944, 333161192, 368857034, 397230652, 421550896, 439489232, 666322384, 737714068, 794461304, 1290999619, 1475428136, 1588922608, 2581999238, 2950856272, 5163998476, 10327996952, 20655993904]

約数ペア:

[(1, 20655993904), (2, 10327996952), (4, 5163998476), (7, 2950856272), (8, 2581999238), (13, 1588922608), (14, 1475428136), (16, 1290999619), (26, 794461304), (28, 737714068), (31, 666322384), (47, 439489232), (49, 421550896), (52, 397230652), (56, 368857034), (62, 333161192), (91, 226988944), (94, 219744616), (98, 210775448), (104, 198615326), (107, 193046672), (112, 184428517), (124, 166580596), (169, 122224816), (182, 113494472), (188, 109872308), (196, 105387724), (208, 99307663), (214, 96523336), (217, 95188912), (248, 83290298), (329, 62784176), (338, 61112408), (364, 56747236), (376, 54936154), (392, 52693862), (403, 51255568), (428, 48261668), (434, 47594456), (496, 41645149), (611, 33806864), (637, 32426992), (658, 31392088), (676, 30556204), (728, 28373618), (749, 27578096), (752, 27468077), (784, 26346931), (806, 25627784), (856, 24130834), (868, 23797228), (1183, 17460688), (1222, 16903432), (1274, 16213496), (1316, 15696044), (1352, 15278102), (1391, 14849744), (1456, 14186809), (1457, 14177072), (1498, 13789048), (1519, 13598416), (1612, 12813892), (1712, 12065417), (1736, 11898614), (2303, 8969168), (2366, 8730344), (2444, 8451716), (2548, 8106748), (2632, 7848022), (2704, 7639051), (2782, 7424872), (2821, 7322224), (2914, 7088536), (2996, 6894524), (3038, 6799208), (3224, 6406946), (3317, 6227312), (3472, 5949307), (4277, 4829552), (4606, 4484584), (4732, 4365172), (4888, 4225858), (5029, 4107376), (5096, 4053374), (5239, 3942736), (5243, 3939728), (5264, 3924011), (5564, 3712436), (5642, 3661112), (5828, 3544268), (5992, 3447262), (6076, 3399604), (6448, 3203473), (6634, 3113656), (7943, 2600528), (8281, 2494384), (8554, 2414776), (9212, 2242292), (9464, 2182586), (9737, 2121392), (9776, 2112929), (10058, 2053688), (10192, 2026687), (10199, 2025296), (10478, 1971368), (10486, 1969864), (11128, 1856218), (11284, 1830556), (11656, 1772134), (11984, 1723631), (12152, 1699802), (13268, 1556828), (15886, 1300264), (16562, 1247192), (17108, 1207388), (18083, 1142288), (18424, 1121146), (18928, 1091293), (18941, 1090544), (19474, 1060696), (19747, 1046032), (20116, 1026844), (20398, 1012648), (20956, 985684), (20972, 984932), (22256, 928109), (22568, 915278), (23219, 889616), (23312, 886067), (24304, 849901), (26536, 778414), (29939, 689936), (31772, 650132), (33124, 623596), (34216, 603694), (35203, 586768), (36166, 571144), (36673, 563248), (36848, 560573), (37882, 545272), (38948, 530348), (39494, 523016), (40232, 513422), (40796, 506324), (41912, 492842), (41944, 492466), (43121, 479024), (45136, 457639), (46438, 444808), (53072, 389207), (55601, 371504), (59878, 344968), (63544, 325066), (65377, 315952), (66248, 311798), (68159, 303056), (68432, 301847), (70406, 293384), (71393, 289328), (72332, 285572), (73346, 281624), (75764, 272636), (77896, 265174), (78988, 261508), (80464, 256711), (81592, 253162), (83824, 246421), (83888, 246233), (86242, 239512), (92876, 222404), (111202, 185752), (119756, 172484), (126581, 163184), (127088, 162533), (130754, 157976), (132496, 155899), (132587, 155792), (136318, 151528), (140812, 146692), (142786, 144664)]