139769315

素因数分解:

$5^1\times 7^2\times {\mathrm{570487}}^1$

素因数の和:570506

約数の個数: 12

約数和(自身を含む): 195106896

約数和(自身を除く): 55337581

約数列:

[1, 5, 7, 35, 49, 245, 570487, 2852435, 3993409, 19967045, 27953863, 139769315]

約数ペア:

[(1, 139769315), (5, 27953863), (7, 19967045), (35, 3993409), (49, 2852435), (245, 570487)]