81318676

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{421}}^1\times {\mathrm{1123}}^1$

素因数の和:1591

約数の個数: 24

約数和(自身を含む): 146093024

約数和(自身を除く): 64774348

約数列:

[1, 2, 4, 43, 86, 172, 421, 842, 1123, 1684, 2246, 4492, 18103, 36206, 48289, 72412, 96578, 193156, 472783, 945566, 1891132, 20329669, 40659338, 81318676]

約数ペア:

[(1, 81318676), (2, 40659338), (4, 20329669), (43, 1891132), (86, 945566), (172, 472783), (421, 193156), (842, 96578), (1123, 72412), (1684, 48289), (2246, 36206), (4492, 18103)]