218207140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4957}}^1$

素因数の和:5068

約数の個数: 48

約数和(自身を含む): 479775744

約数和(自身を除く): 261568604

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 4402, 4957, 8804, 9914, 11005, 19828, 22010, 24785, 44020, 49570, 99140, 153667, 307334, 351947, 614668, 703894, 768335, 1407788, 1536670, 1759735, 3073340, 3519470, 7038940, 10910357, 21820714, 43641428, 54551785, 109103570, 218207140]

約数ペア:

[(1, 218207140), (2, 109103570), (4, 54551785), (5, 43641428), (10, 21820714), (20, 10910357), (31, 7038940), (62, 3519470), (71, 3073340), (124, 1759735), (142, 1536670), (155, 1407788), (284, 768335), (310, 703894), (355, 614668), (620, 351947), (710, 307334), (1420, 153667), (2201, 99140), (4402, 49570), (4957, 44020), (8804, 24785), (9914, 22010), (11005, 19828)]