20256975

素因数分解:

$3^2\times 5^2\times {\mathrm{90031}}^1$

素因数の和:90047

約数の個数: 18

約数和(自身を含む): 36282896

約数和(自身を除く): 16025921

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90031, 270093, 450155, 810279, 1350465, 2250775, 4051395, 6752325, 20256975]

約数ペア:

[(1, 20256975), (3, 6752325), (5, 4051395), (9, 2250775), (15, 1350465), (25, 810279), (45, 450155), (75, 270093), (225, 90031)]