71661890

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{36011}}^1$

素因数の和:36217

約数の個数: 16

約数和(自身を含む): 129643200

約数和(自身を除く): 57981310

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 36011, 72022, 180055, 360110, 7166189, 14332378, 35830945, 71661890]

約数ペア:

[(1, 71661890), (2, 35830945), (5, 14332378), (10, 7166189), (199, 360110), (398, 180055), (995, 72022), (1990, 36011)]