3128405

素因数分解:

$5^1\times 7^2\times {\mathrm{113}}^2$

素因数の和:245

約数の個数: 18

約数和(自身を含む): 4405986

約数和(自身を除く): 1277581

約数列:

[1, 5, 7, 35, 49, 113, 245, 565, 791, 3955, 5537, 12769, 27685, 63845, 89383, 446915, 625681, 3128405]

約数ペア:

[(1, 3128405), (5, 625681), (7, 446915), (35, 89383), (49, 63845), (113, 27685), (245, 12769), (565, 5537), (791, 3955)]