78480872

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{90001}}^1$

素因数の和:90116

約数の個数: 16

約数和(自身を含む): 148503300

約数和(自身を除く): 70022428

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 90001, 180002, 360004, 720008, 9810109, 19620218, 39240436, 78480872]

約数ペア:

[(1, 78480872), (2, 39240436), (4, 19620218), (8, 9810109), (109, 720008), (218, 360004), (436, 180002), (872, 90001)]