66900815

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{947}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 81907200

約数和(自身を除く): 15006385

約数列:

[1, 5, 71, 199, 355, 947, 995, 4735, 14129, 67237, 70645, 188453, 336185, 942265, 13380163, 66900815]

約数ペア:

[(1, 66900815), (5, 13380163), (71, 942265), (199, 336185), (355, 188453), (947, 70645), (995, 67237), (4735, 14129)]