17940820

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1571}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 37765728

約数和(自身を除く): 19824908

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 1571, 2284, 2855, 3142, 5710, 6284, 7855, 11420, 15710, 31420, 897041, 1794082, 3588164, 4485205, 8970410, 17940820]

約数ペア:

[(1, 17940820), (2, 8970410), (4, 4485205), (5, 3588164), (10, 1794082), (20, 897041), (571, 31420), (1142, 15710), (1571, 11420), (2284, 7855), (2855, 6284), (3142, 5710)]