156625400420

素因数分解:

$2^2\times 5^1\times {\mathrm{7831270021}}^1$

素因数の和:7831270030

約数の個数: 12

約数和(自身を含む): 328913340924

約数和(自身を除く): 172287940504

約数列:

[1, 2, 4, 5, 10, 20, 7831270021, 15662540042, 31325080084, 39156350105, 78312700210, 156625400420]

約数ペア:

[(1, 156625400420), (2, 78312700210), (4, 39156350105), (5, 31325080084), (10, 15662540042), (20, 7831270021)]