18712850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{28789}}^1$

素因数の和:28814

約数の個数: 24

約数和(自身を含む): 37484580

約数和(自身を除く): 18771730

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 28789, 57578, 143945, 287890, 374257, 719725, 748514, 1439450, 1871285, 3742570, 9356425, 18712850]

約数ペア:

[(1, 18712850), (2, 9356425), (5, 3742570), (10, 1871285), (13, 1439450), (25, 748514), (26, 719725), (50, 374257), (65, 287890), (130, 143945), (325, 57578), (650, 28789)]