20261465

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 8630695

約数列:

[1, 5, 7, 35, 47, 109, 113, 235, 329, 545, 565, 763, 791, 1645, 3815, 3955, 5123, 5311, 12317, 25615, 26555, 35861, 37177, 61585, 86219, 179305, 185885, 431095, 578899, 2894495, 4052293, 20261465]

約数ペア:

[(1, 20261465), (5, 4052293), (7, 2894495), (35, 578899), (47, 431095), (109, 185885), (113, 179305), (235, 86219), (329, 61585), (545, 37177), (565, 35861), (763, 26555), (791, 25615), (1645, 12317), (3815, 5311), (3955, 5123)]