4980491420

素因数分解:

$2^2\times 5^1\times {\mathrm{249024571}}^1$

素因数の和:249024580

約数の個数: 12

約数和(自身を含む): 10459032024

約数和(自身を除く): 5478540604

約数列:

[1, 2, 4, 5, 10, 20, 249024571, 498049142, 996098284, 1245122855, 2490245710, 4980491420]

約数ペア:

[(1, 4980491420), (2, 2490245710), (4, 1245122855), (5, 996098284), (10, 498049142), (20, 249024571)]