20638680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 128

約数和(自身を含む): 66977280

約数和(自身を除く): 46338600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 67, 68, 85, 102, 120, 134, 136, 151, 170, 201, 204, 255, 268, 302, 335, 340, 402, 408, 453, 510, 536, 604, 670, 680, 755, 804, 906, 1005, 1020, 1139, 1208, 1340, 1510, 1608, 1812, 2010, 2040, 2265, 2278, 2567, 2680, 3020, 3417, 3624, 4020, 4530, 4556, 5134, 5695, 6040, 6834, 7701, 8040, 9060, 9112, 10117, 10268, 11390, 12835, 13668, 15402, 17085, 18120, 20234, 20536, 22780, 25670, 27336, 30351, 30804, 34170, 38505, 40468, 45560, 50585, 51340, 60702, 61608, 68340, 77010, 80936, 101170, 102680, 121404, 136680, 151755, 154020, 171989, 202340, 242808, 303510, 308040, 343978, 404680, 515967, 607020, 687956, 859945, 1031934, 1214040, 1375912, 1719890, 2063868, 2579835, 3439780, 4127736, 5159670, 6879560, 10319340, 20638680]

約数ペア:

[(1, 20638680), (2, 10319340), (3, 6879560), (4, 5159670), (5, 4127736), (6, 3439780), (8, 2579835), (10, 2063868), (12, 1719890), (15, 1375912), (17, 1214040), (20, 1031934), (24, 859945), (30, 687956), (34, 607020), (40, 515967), (51, 404680), (60, 343978), (67, 308040), (68, 303510), (85, 242808), (102, 202340), (120, 171989), (134, 154020), (136, 151755), (151, 136680), (170, 121404), (201, 102680), (204, 101170), (255, 80936), (268, 77010), (302, 68340), (335, 61608), (340, 60702), (402, 51340), (408, 50585), (453, 45560), (510, 40468), (536, 38505), (604, 34170), (670, 30804), (680, 30351), (755, 27336), (804, 25670), (906, 22780), (1005, 20536), (1020, 20234), (1139, 18120), (1208, 17085), (1340, 15402), (1510, 13668), (1608, 12835), (1812, 11390), (2010, 10268), (2040, 10117), (2265, 9112), (2278, 9060), (2567, 8040), (2680, 7701), (3020, 6834), (3417, 6040), (3624, 5695), (4020, 5134), (4530, 4556)]