220897775

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{20693}}^1$

素因数の和:20771

約数の個数: 24

約数和(自身を含む): 318190944

約数和(自身を除く): 97293169

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 1525, 2135, 10675, 20693, 103465, 144851, 517325, 724255, 1262273, 3621275, 6311365, 8835911, 31556825, 44179555, 220897775]

約数ペア:

[(1, 220897775), (5, 44179555), (7, 31556825), (25, 8835911), (35, 6311365), (61, 3621275), (175, 1262273), (305, 724255), (427, 517325), (1525, 144851), (2135, 103465), (10675, 20693)]