15420545

素因数分解:

$5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{557}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 21755304

約数和(自身を除く): 6334759

約数列:

[1, 5, 7, 35, 49, 113, 245, 557, 565, 791, 2785, 3899, 3955, 5537, 19495, 27293, 27685, 62941, 136465, 314705, 440587, 2202935, 3084109, 15420545]

約数ペア:

[(1, 15420545), (5, 3084109), (7, 2202935), (35, 440587), (49, 314705), (113, 136465), (245, 62941), (557, 27685), (565, 27293), (791, 19495), (2785, 5537), (3899, 3955)]