18704725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{859}}^1$

素因数の和:949

約数の個数: 24

約数和(自身を含む): 25380320

約数和(自身を除く): 6675595

約数列:

[1, 5, 13, 25, 65, 67, 325, 335, 859, 871, 1675, 4295, 4355, 11167, 21475, 21775, 55835, 57553, 279175, 287765, 748189, 1438825, 3740945, 18704725]

約数ペア:

[(1, 18704725), (5, 3740945), (13, 1438825), (25, 748189), (65, 287765), (67, 279175), (325, 57553), (335, 55835), (859, 21775), (871, 21475), (1675, 11167), (4295, 4355)]