1680945

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{2287}}^1$

素因数の和:2309

約数の個数: 24

約数和(自身を含む): 3129984

約数和(自身を除く): 1449039

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 2287, 6861, 11435, 16009, 34305, 48027, 80045, 112063, 240135, 336189, 560315, 1680945]

約数ペア:

[(1, 1680945), (3, 560315), (5, 336189), (7, 240135), (15, 112063), (21, 80045), (35, 48027), (49, 34305), (105, 16009), (147, 11435), (245, 6861), (735, 2287)]