77772920

素因数分解:

$2^3\times 5^1\times {\mathrm{1944323}}^1$

素因数の和:1944334

約数の個数: 16

約数和(自身を含む): 174989160

約数和(自身を除く): 97216240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1944323, 3888646, 7777292, 9721615, 15554584, 19443230, 38886460, 77772920]

約数ペア:

[(1, 77772920), (2, 38886460), (4, 19443230), (5, 15554584), (8, 9721615), (10, 7777292), (20, 3888646), (40, 1944323)]