28132690

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 51840000

約数和(自身を除く): 23707310

約数列:

[1, 2, 5, 10, 79, 149, 158, 239, 298, 395, 478, 745, 790, 1195, 1490, 2390, 11771, 18881, 23542, 35611, 37762, 58855, 71222, 94405, 117710, 178055, 188810, 356110, 2813269, 5626538, 14066345, 28132690]

約数ペア:

[(1, 28132690), (2, 14066345), (5, 5626538), (10, 2813269), (79, 356110), (149, 188810), (158, 178055), (239, 117710), (298, 94405), (395, 71222), (478, 58855), (745, 37762), (790, 35611), (1195, 23542), (1490, 18881), (2390, 11771)]