39985640

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6709}}^1$

素因数の和:6869

約数の個数: 32

約数和(自身を含む): 90585000

約数和(自身を除く): 50599360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 6709, 13418, 26836, 33545, 53672, 67090, 134180, 268360, 999641, 1999282, 3998564, 4998205, 7997128, 9996410, 19992820, 39985640]

約数ペア:

[(1, 39985640), (2, 19992820), (4, 9996410), (5, 7997128), (8, 4998205), (10, 3998564), (20, 1999282), (40, 999641), (149, 268360), (298, 134180), (596, 67090), (745, 53672), (1192, 33545), (1490, 26836), (2980, 13418), (5960, 6709)]