28013545

素因数分解:

$5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1049}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 39501000

約数和(自身を除く): 11487455

約数列:

[1, 5, 7, 35, 49, 109, 245, 545, 763, 1049, 3815, 5245, 5341, 7343, 26705, 36715, 51401, 114341, 257005, 571705, 800387, 4001935, 5602709, 28013545]

約数ペア:

[(1, 28013545), (5, 5602709), (7, 4001935), (35, 800387), (49, 571705), (109, 257005), (245, 114341), (545, 51401), (763, 36715), (1049, 26705), (3815, 7343), (5245, 5341)]