55591280

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1699}}^1$

素因数の和:2121

約数の個数: 40

約数和(自身を含む): 129642000

約数和(自身を除く): 74050720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 1699, 2045, 3272, 3398, 4090, 6544, 6796, 8180, 8495, 13592, 16360, 16990, 27184, 32720, 33980, 67960, 135920, 694891, 1389782, 2779564, 3474455, 5559128, 6948910, 11118256, 13897820, 27795640, 55591280]

約数ペア:

[(1, 55591280), (2, 27795640), (4, 13897820), (5, 11118256), (8, 6948910), (10, 5559128), (16, 3474455), (20, 2779564), (40, 1389782), (80, 694891), (409, 135920), (818, 67960), (1636, 33980), (1699, 32720), (2045, 27184), (3272, 16990), (3398, 16360), (4090, 13592), (6544, 8495), (6796, 8180)]