128798575

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{541}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 163315440

約数和(自身を除く): 34516865

約数列:

[1, 5, 25, 89, 107, 445, 535, 541, 2225, 2675, 2705, 9523, 13525, 47615, 48149, 57887, 238075, 240745, 289435, 1203725, 1447175, 5151943, 25759715, 128798575]

約数ペア:

[(1, 128798575), (5, 25759715), (25, 5151943), (89, 1447175), (107, 1203725), (445, 289435), (535, 240745), (541, 238075), (2225, 57887), (2675, 48149), (2705, 47615), (9523, 13525)]