40380490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:858

約数の個数: 32

約数和(自身を含む): 75070800

約数和(自身を除く): 34690310

約数列:

[1, 2, 5, 10, 41, 82, 149, 205, 298, 410, 661, 745, 1322, 1490, 3305, 6109, 6610, 12218, 27101, 30545, 54202, 61090, 98489, 135505, 196978, 271010, 492445, 984890, 4038049, 8076098, 20190245, 40380490]

約数ペア:

[(1, 40380490), (2, 20190245), (5, 8076098), (10, 4038049), (41, 984890), (82, 492445), (149, 271010), (205, 196978), (298, 135505), (410, 98489), (661, 61090), (745, 54202), (1322, 30545), (1490, 27101), (3305, 12218), (6109, 6610)]