31430990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{44269}}^1$

素因数の和:44347

約数の個数: 16

約数和(自身を含む): 57373920

約数和(自身を除く): 25942930

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 44269, 88538, 221345, 442690, 3143099, 6286198, 15715495, 31430990]

約数ペア:

[(1, 31430990), (2, 15715495), (5, 6286198), (10, 3143099), (71, 442690), (142, 221345), (355, 88538), (710, 44269)]