21290640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:94

約数の個数: 320

約数和(自身を含む): 85708800

約数和(自身を除く): 64418160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 23, 24, 28, 29, 30, 35, 38, 40, 42, 46, 48, 56, 57, 58, 60, 69, 70, 76, 80, 84, 87, 92, 95, 105, 112, 114, 115, 116, 120, 133, 138, 140, 145, 152, 161, 168, 174, 184, 190, 203, 210, 228, 230, 232, 240, 266, 276, 280, 285, 290, 304, 322, 336, 345, 348, 368, 380, 399, 406, 420, 435, 437, 456, 460, 464, 483, 532, 551, 552, 560, 570, 580, 609, 644, 665, 667, 690, 696, 760, 798, 805, 812, 840, 870, 874, 912, 920, 966, 1015, 1064, 1102, 1104, 1140, 1160, 1218, 1288, 1311, 1330, 1334, 1380, 1392, 1520, 1596, 1610, 1624, 1653, 1680, 1740, 1748, 1840, 1932, 1995, 2001, 2030, 2128, 2185, 2204, 2280, 2320, 2415, 2436, 2576, 2622, 2660, 2668, 2755, 2760, 3045, 3059, 3192, 3220, 3248, 3306, 3335, 3480, 3496, 3857, 3864, 3990, 4002, 4060, 4370, 4408, 4560, 4669, 4830, 4872, 5244, 5320, 5336, 5510, 5520, 6090, 6118, 6384, 6440, 6555, 6612, 6670, 6960, 6992, 7714, 7728, 7980, 8004, 8120, 8265, 8740, 8816, 9177, 9338, 9660, 9744, 10005, 10488, 10640, 10672, 11020, 11571, 12180, 12236, 12673, 12880, 13110, 13224, 13340, 14007, 15295, 15428, 15960, 16008, 16240, 16530, 17480, 18354, 18676, 19285, 19320, 20010, 20976, 22040, 23142, 23345, 24360, 24472, 25346, 26220, 26448, 26680, 28014, 30590, 30856, 31920, 32016, 33060, 34960, 36708, 37352, 38019, 38570, 38640, 40020, 44080, 45885, 46284, 46690, 48720, 48944, 50692, 52440, 53360, 56028, 57855, 61180, 61712, 63365, 66120, 70035, 73416, 74704, 76038, 77140, 80040, 88711, 91770, 92568, 93380, 101384, 104880, 112056, 115710, 122360, 126730, 132240, 140070, 146832, 152076, 154280, 160080, 177422, 183540, 185136, 186760, 190095, 202768, 224112, 231420, 244720, 253460, 266133, 280140, 304152, 308560, 354844, 367080, 373520, 380190, 443555, 462840, 506920, 532266, 560280, 608304, 709688, 734160, 760380, 887110, 925680, 1013840, 1064532, 1120560, 1330665, 1419376, 1520760, 1774220, 2129064, 2661330, 3041520, 3548440, 4258128, 5322660, 7096880, 10645320, 21290640]

約数ペア:

[(1, 21290640), (2, 10645320), (3, 7096880), (4, 5322660), (5, 4258128), (6, 3548440), (7, 3041520), (8, 2661330), (10, 2129064), (12, 1774220), (14, 1520760), (15, 1419376), (16, 1330665), (19, 1120560), (20, 1064532), (21, 1013840), (23, 925680), (24, 887110), (28, 760380), (29, 734160), (30, 709688), (35, 608304), (38, 560280), (40, 532266), (42, 506920), (46, 462840), (48, 443555), (56, 380190), (57, 373520), (58, 367080), (60, 354844), (69, 308560), (70, 304152), (76, 280140), (80, 266133), (84, 253460), (87, 244720), (92, 231420), (95, 224112), (105, 202768), (112, 190095), (114, 186760), (115, 185136), (116, 183540), (120, 177422), (133, 160080), (138, 154280), (140, 152076), (145, 146832), (152, 140070), (161, 132240), (168, 126730), (174, 122360), (184, 115710), (190, 112056), (203, 104880), (210, 101384), (228, 93380), (230, 92568), (232, 91770), (240, 88711), (266, 80040), (276, 77140), (280, 76038), (285, 74704), (290, 73416), (304, 70035), (322, 66120), (336, 63365), (345, 61712), (348, 61180), (368, 57855), (380, 56028), (399, 53360), (406, 52440), (420, 50692), (435, 48944), (437, 48720), (456, 46690), (460, 46284), (464, 45885), (483, 44080), (532, 40020), (551, 38640), (552, 38570), (560, 38019), (570, 37352), (580, 36708), (609, 34960), (644, 33060), (665, 32016), (667, 31920), (690, 30856), (696, 30590), (760, 28014), (798, 26680), (805, 26448), (812, 26220), (840, 25346), (870, 24472), (874, 24360), (912, 23345), (920, 23142), (966, 22040), (1015, 20976), (1064, 20010), (1102, 19320), (1104, 19285), (1140, 18676), (1160, 18354), (1218, 17480), (1288, 16530), (1311, 16240), (1330, 16008), (1334, 15960), (1380, 15428), (1392, 15295), (1520, 14007), (1596, 13340), (1610, 13224), (1624, 13110), (1653, 12880), (1680, 12673), (1740, 12236), (1748, 12180), (1840, 11571), (1932, 11020), (1995, 10672), (2001, 10640), (2030, 10488), (2128, 10005), (2185, 9744), (2204, 9660), (2280, 9338), (2320, 9177), (2415, 8816), (2436, 8740), (2576, 8265), (2622, 8120), (2660, 8004), (2668, 7980), (2755, 7728), (2760, 7714), (3045, 6992), (3059, 6960), (3192, 6670), (3220, 6612), (3248, 6555), (3306, 6440), (3335, 6384), (3480, 6118), (3496, 6090), (3857, 5520), (3864, 5510), (3990, 5336), (4002, 5320), (4060, 5244), (4370, 4872), (4408, 4830), (4560, 4669)]