257072535

素因数分解:

$3^4\times 5^1\times {\mathrm{634747}}^1$

素因数の和:634764

約数の個数: 20

約数和(自身を含む): 460827048

約数和(自身を除く): 203754513

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 634747, 1904241, 3173735, 5712723, 9521205, 17138169, 28563615, 51414507, 85690845, 257072535]

約数ペア:

[(1, 257072535), (3, 85690845), (5, 51414507), (9, 28563615), (15, 17138169), (27, 9521205), (45, 5712723), (81, 3173735), (135, 1904241), (405, 634747)]