20615868

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:97

約数の個数: 216

約数和(自身を含む): 69713280

約数和(自身を除く): 49097412

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 29, 31, 36, 39, 42, 49, 52, 58, 62, 63, 78, 84, 87, 91, 93, 98, 116, 117, 124, 126, 147, 156, 174, 182, 186, 196, 203, 217, 234, 252, 261, 273, 279, 294, 348, 364, 372, 377, 403, 406, 434, 441, 468, 522, 546, 558, 588, 609, 637, 651, 754, 806, 812, 819, 868, 882, 899, 1044, 1092, 1116, 1131, 1209, 1218, 1274, 1302, 1421, 1508, 1519, 1612, 1638, 1764, 1798, 1827, 1911, 1953, 2262, 2418, 2436, 2548, 2604, 2639, 2697, 2821, 2842, 3038, 3276, 3393, 3596, 3627, 3654, 3822, 3906, 4263, 4524, 4557, 4836, 5278, 5394, 5642, 5684, 5733, 6076, 6293, 6786, 7254, 7308, 7644, 7812, 7917, 8091, 8463, 8526, 9114, 10556, 10788, 11284, 11466, 11687, 12586, 12789, 13572, 13671, 14508, 15834, 16182, 16926, 17052, 18228, 18473, 18879, 19747, 22932, 23374, 23751, 25172, 25389, 25578, 27342, 31668, 32364, 33852, 35061, 36946, 37758, 39494, 44051, 46748, 47502, 50778, 51156, 54684, 55419, 56637, 59241, 70122, 73892, 75516, 78988, 81809, 88102, 95004, 101556, 105183, 110838, 113274, 118482, 132153, 140244, 163618, 166257, 176204, 177723, 210366, 221676, 226548, 236964, 245427, 264306, 327236, 332514, 355446, 396459, 420732, 490854, 528612, 572663, 665028, 710892, 736281, 792918, 981708, 1145326, 1472562, 1585836, 1717989, 2290652, 2945124, 3435978, 5153967, 6871956, 10307934, 20615868]

約数ペア:

[(1, 20615868), (2, 10307934), (3, 6871956), (4, 5153967), (6, 3435978), (7, 2945124), (9, 2290652), (12, 1717989), (13, 1585836), (14, 1472562), (18, 1145326), (21, 981708), (26, 792918), (28, 736281), (29, 710892), (31, 665028), (36, 572663), (39, 528612), (42, 490854), (49, 420732), (52, 396459), (58, 355446), (62, 332514), (63, 327236), (78, 264306), (84, 245427), (87, 236964), (91, 226548), (93, 221676), (98, 210366), (116, 177723), (117, 176204), (124, 166257), (126, 163618), (147, 140244), (156, 132153), (174, 118482), (182, 113274), (186, 110838), (196, 105183), (203, 101556), (217, 95004), (234, 88102), (252, 81809), (261, 78988), (273, 75516), (279, 73892), (294, 70122), (348, 59241), (364, 56637), (372, 55419), (377, 54684), (403, 51156), (406, 50778), (434, 47502), (441, 46748), (468, 44051), (522, 39494), (546, 37758), (558, 36946), (588, 35061), (609, 33852), (637, 32364), (651, 31668), (754, 27342), (806, 25578), (812, 25389), (819, 25172), (868, 23751), (882, 23374), (899, 22932), (1044, 19747), (1092, 18879), (1116, 18473), (1131, 18228), (1209, 17052), (1218, 16926), (1274, 16182), (1302, 15834), (1421, 14508), (1508, 13671), (1519, 13572), (1612, 12789), (1638, 12586), (1764, 11687), (1798, 11466), (1827, 11284), (1911, 10788), (1953, 10556), (2262, 9114), (2418, 8526), (2436, 8463), (2548, 8091), (2604, 7917), (2639, 7812), (2697, 7644), (2821, 7308), (2842, 7254), (3038, 6786), (3276, 6293), (3393, 6076), (3596, 5733), (3627, 5684), (3654, 5642), (3822, 5394), (3906, 5278), (4263, 4836), (4524, 4557)]