39780405

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{18041}}^1$

素因数の和:18066

約数の個数: 36

約数和(自身を含む): 80214732

約数和(自身を除く): 40434327

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 18041, 54123, 90205, 126287, 162369, 270615, 378861, 631435, 811845, 884009, 1136583, 1894305, 2652027, 4420045, 5682915, 7956081, 13260135, 39780405]

約数ペア:

[(1, 39780405), (3, 13260135), (5, 7956081), (7, 5682915), (9, 4420045), (15, 2652027), (21, 1894305), (35, 1136583), (45, 884009), (49, 811845), (63, 631435), (105, 378861), (147, 270615), (245, 162369), (315, 126287), (441, 90205), (735, 54123), (2205, 18041)]