520020605

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{21221}}^1$

素因数の和:21281

約数の個数: 24

約数和(自身を含む): 699052680

約数和(自身を除く): 179032075

約数列:

[1, 5, 13, 29, 65, 145, 169, 377, 845, 1885, 4901, 21221, 24505, 106105, 275873, 615409, 1379365, 3077045, 3586349, 8000317, 17931745, 40001585, 104004121, 520020605]

約数ペア:

[(1, 520020605), (5, 104004121), (13, 40001585), (29, 17931745), (65, 8000317), (145, 3586349), (169, 3077045), (377, 1379365), (845, 615409), (1885, 275873), (4901, 106105), (21221, 24505)]