78250420

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{4441}}^1$

素因数の和:5331

約数の個数: 24

約数和(自身を含む): 164549448

約数和(自身を除く): 86299028

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 4441, 8810, 8882, 17620, 17764, 22205, 44410, 88820, 3912521, 7825042, 15650084, 19562605, 39125210, 78250420]

約数ペア:

[(1, 78250420), (2, 39125210), (4, 19562605), (5, 15650084), (10, 7825042), (20, 3912521), (881, 88820), (1762, 44410), (3524, 22205), (4405, 17764), (4441, 17620), (8810, 8882)]