305980420

素因数分解:

$2^2\times 5^1\times {\mathrm{15299021}}^1$

素因数の和:15299030

約数の個数: 12

約数和(自身を含む): 642558924

約数和(自身を除く): 336578504

約数列:

[1, 2, 4, 5, 10, 20, 15299021, 30598042, 61196084, 76495105, 152990210, 305980420]

約数ペア:

[(1, 305980420), (2, 152990210), (4, 76495105), (5, 61196084), (10, 30598042), (20, 15299021)]