31525420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^2$

素因数の和:378

約数の個数: 36

約数和(自身を含む): 67589424

約数和(自身を除く): 36064004

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 149, 284, 298, 355, 596, 710, 745, 1420, 1490, 2980, 10579, 21158, 22201, 42316, 44402, 52895, 88804, 105790, 111005, 211580, 222010, 444020, 1576271, 3152542, 6305084, 7881355, 15762710, 31525420]

約数ペア:

[(1, 31525420), (2, 15762710), (4, 7881355), (5, 6305084), (10, 3152542), (20, 1576271), (71, 444020), (142, 222010), (149, 211580), (284, 111005), (298, 105790), (355, 88804), (596, 52895), (710, 44402), (745, 42316), (1420, 22201), (1490, 21158), (2980, 10579)]