78916405

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43721}}^1$

素因数の和:43764

約数の個数: 12

約数和(自身を含む): 99948492

約数和(自身を除く): 21032087

約数列:

[1, 5, 19, 95, 361, 1805, 43721, 218605, 830699, 4153495, 15783281, 78916405]

約数ペア:

[(1, 78916405), (5, 15783281), (19, 4153495), (95, 830699), (361, 218605), (1805, 43721)]