316660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 677376

約数和(自身を除く): 360716

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 223, 284, 355, 446, 710, 892, 1115, 1420, 2230, 4460, 15833, 31666, 63332, 79165, 158330, 316660]

約数ペア:

[(1, 316660), (2, 158330), (4, 79165), (5, 63332), (10, 31666), (20, 15833), (71, 4460), (142, 2230), (223, 1420), (284, 1115), (355, 892), (446, 710)]