840275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:119

約数の個数: 24

約数和(自身を含む): 1153200

約数和(自身を除く): 312925

約数列:

[1, 5, 19, 25, 29, 61, 95, 145, 305, 475, 551, 725, 1159, 1525, 1769, 2755, 5795, 8845, 13775, 28975, 33611, 44225, 168055, 840275]

約数ペア:

[(1, 840275), (5, 168055), (19, 44225), (25, 33611), (29, 28975), (61, 13775), (95, 8845), (145, 5795), (305, 2755), (475, 1769), (551, 1525), (725, 1159)]