20698265

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 10094695

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 215, 301, 595, 731, 809, 1505, 3655, 4045, 5117, 5663, 13753, 25585, 28315, 34787, 68765, 96271, 173935, 243509, 481355, 591379, 1217545, 2956895, 4139653, 20698265]

約数ペア:

[(1, 20698265), (5, 4139653), (7, 2956895), (17, 1217545), (35, 591379), (43, 481355), (85, 243509), (119, 173935), (215, 96271), (301, 68765), (595, 34787), (731, 28315), (809, 25585), (1505, 13753), (3655, 5663), (4045, 5117)]