31680560

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3701}}^1$

素因数の和:3821

約数の個数: 40

約数和(自身を含む): 74365776

約数和(自身を除く): 42685216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 3701, 4280, 7402, 8560, 14804, 18505, 29608, 37010, 59216, 74020, 148040, 296080, 396007, 792014, 1584028, 1980035, 3168056, 3960070, 6336112, 7920140, 15840280, 31680560]

約数ペア:

[(1, 31680560), (2, 15840280), (4, 7920140), (5, 6336112), (8, 3960070), (10, 3168056), (16, 1980035), (20, 1584028), (40, 792014), (80, 396007), (107, 296080), (214, 148040), (428, 74020), (535, 59216), (856, 37010), (1070, 29608), (1712, 18505), (2140, 14804), (3701, 8560), (4280, 7402)]