2680320625

素因数分解:

$5^4\times {\mathrm{223}}^1\times {\mathrm{19231}}^1$

素因数の和:19474

約数の個数: 20

約数和(自身を含む): 3364523008

約数和(自身を除く): 684202383

約数列:

[1, 5, 25, 125, 223, 625, 1115, 5575, 19231, 27875, 96155, 139375, 480775, 2403875, 4288513, 12019375, 21442565, 107212825, 536064125, 2680320625]

約数ペア:

[(1, 2680320625), (5, 536064125), (25, 107212825), (125, 21442565), (223, 12019375), (625, 4288513), (1115, 2403875), (5575, 480775), (19231, 139375), (27875, 96155)]