20138763790

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{8426261}}^1$

素因数の和:8426507

約数の個数: 16

約数和(自身を含む): 36401451840

約数和(自身を除く): 16262688050

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 8426261, 16852522, 42131305, 84262610, 2013876379, 4027752758, 10069381895, 20138763790]

約数ペア:

[(1, 20138763790), (2, 10069381895), (5, 4027752758), (10, 2013876379), (239, 84262610), (478, 42131305), (1195, 16852522), (2390, 8426261)]