81533325

素因数分解:

$3^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{2711}}^1$

素因数の和:3125

約数の個数: 24

約数和(自身を含む): 135187776

約数和(自身を除く): 53654451

約数列:

[1, 3, 5, 15, 25, 75, 401, 1203, 2005, 2711, 6015, 8133, 10025, 13555, 30075, 40665, 67775, 203325, 1087111, 3261333, 5435555, 16306665, 27177775, 81533325]

約数ペア:

[(1, 81533325), (3, 27177775), (5, 16306665), (15, 5435555), (25, 3261333), (75, 1087111), (401, 203325), (1203, 67775), (2005, 40665), (2711, 30075), (6015, 13555), (8133, 10025)]