6646250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:444

約数の個数: 40

約数和(自身を含む): 13448820

約数和(自身を除く): 6802570

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 409, 625, 650, 818, 1250, 1625, 2045, 3250, 4090, 5317, 8125, 10225, 10634, 16250, 20450, 26585, 51125, 53170, 102250, 132925, 255625, 265850, 511250, 664625, 1329250, 3323125, 6646250]

約数ペア:

[(1, 6646250), (2, 3323125), (5, 1329250), (10, 664625), (13, 511250), (25, 265850), (26, 255625), (50, 132925), (65, 102250), (125, 53170), (130, 51125), (250, 26585), (325, 20450), (409, 16250), (625, 10634), (650, 10225), (818, 8125), (1250, 5317), (1625, 4090), (2045, 3250)]