8049268540

素因数分解:

$2^2\times 5^1\times {\mathrm{402463427}}^1$

素因数の和:402463436

約数の個数: 12

約数和(自身を含む): 16903463976

約数和(自身を除く): 8854195436

約数列:

[1, 2, 4, 5, 10, 20, 402463427, 804926854, 1609853708, 2012317135, 4024634270, 8049268540]

約数ペア:

[(1, 8049268540), (2, 4024634270), (4, 2012317135), (5, 1609853708), (10, 804926854), (20, 402463427)]