66939515

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1\times {\mathrm{643}}^1$

素因数の和:1138

約数の個数: 16

約数和(自身を含む): 82349568

約数和(自身を除く): 15410053

約数列:

[1, 5, 47, 235, 443, 643, 2215, 3215, 20821, 30221, 104105, 151105, 284849, 1424245, 13387903, 66939515]

約数ペア:

[(1, 66939515), (5, 13387903), (47, 1424245), (235, 284849), (443, 151105), (643, 104105), (2215, 30221), (3215, 20821)]