31507670

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 58060800

約数和(自身を除く): 26553130

約数列:

[1, 2, 5, 10, 71, 142, 199, 223, 355, 398, 446, 710, 995, 1115, 1990, 2230, 14129, 15833, 28258, 31666, 44377, 70645, 79165, 88754, 141290, 158330, 221885, 443770, 3150767, 6301534, 15753835, 31507670]

約数ペア:

[(1, 31507670), (2, 15753835), (5, 6301534), (10, 3150767), (71, 443770), (142, 221885), (199, 158330), (223, 141290), (355, 88754), (398, 79165), (446, 70645), (710, 44377), (995, 31666), (1115, 28258), (1990, 15833), (2230, 14129)]