199989725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 284356800

約数和(自身を除く): 84367075

約数列:

[1, 5, 13, 19, 25, 65, 95, 139, 233, 247, 325, 475, 695, 1165, 1235, 1807, 2641, 3029, 3475, 4427, 5825, 6175, 9035, 13205, 15145, 22135, 32387, 34333, 45175, 57551, 66025, 75725, 110675, 161935, 171665, 287755, 421031, 615353, 809675, 858325, 1438775, 2105155, 3076765, 7999589, 10525775, 15383825, 39997945, 199989725]

約数ペア:

[(1, 199989725), (5, 39997945), (13, 15383825), (19, 10525775), (25, 7999589), (65, 3076765), (95, 2105155), (139, 1438775), (233, 858325), (247, 809675), (325, 615353), (475, 421031), (695, 287755), (1165, 171665), (1235, 161935), (1807, 110675), (2641, 75725), (3029, 66025), (3475, 57551), (4427, 45175), (5825, 34333), (6175, 32387), (9035, 22135), (13205, 15145)]