81493460

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{4951}}^1$

素因数の和:5783

約数の個数: 24

約数和(自身を含む): 171378816

約数和(自身を除く): 89885356

約数列:

[1, 2, 4, 5, 10, 20, 823, 1646, 3292, 4115, 4951, 8230, 9902, 16460, 19804, 24755, 49510, 99020, 4074673, 8149346, 16298692, 20373365, 40746730, 81493460]

約数ペア:

[(1, 81493460), (2, 40746730), (4, 20373365), (5, 16298692), (10, 8149346), (20, 4074673), (823, 99020), (1646, 49510), (3292, 24755), (4115, 19804), (4951, 16460), (8230, 9902)]