71620540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1627}}^1$

素因数の和:1738

約数の個数: 48

約数和(自身を含む): 157538304

約数和(自身を除く): 85917764

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 1627, 2201, 3254, 4402, 6508, 8135, 8804, 11005, 16270, 22010, 32540, 44020, 50437, 100874, 115517, 201748, 231034, 252185, 462068, 504370, 577585, 1008740, 1155170, 2310340, 3581027, 7162054, 14324108, 17905135, 35810270, 71620540]

約数ペア:

[(1, 71620540), (2, 35810270), (4, 17905135), (5, 14324108), (10, 7162054), (20, 3581027), (31, 2310340), (62, 1155170), (71, 1008740), (124, 577585), (142, 504370), (155, 462068), (284, 252185), (310, 231034), (355, 201748), (620, 115517), (710, 100874), (1420, 50437), (1627, 44020), (2201, 32540), (3254, 22010), (4402, 16270), (6508, 11005), (8135, 8804)]