40420780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{69691}}^1$

素因数の和:69729

約数の個数: 24

約数和(自身を含む): 87811920

約数和(自身を除く): 47391140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 69691, 139382, 278764, 348455, 696910, 1393820, 2021039, 4042078, 8084156, 10105195, 20210390, 40420780]

約数ペア:

[(1, 40420780), (2, 20210390), (4, 10105195), (5, 8084156), (10, 4042078), (20, 2021039), (29, 1393820), (58, 696910), (116, 348455), (145, 278764), (290, 139382), (580, 69691)]