81377866

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{4987}}^1$

素因数の和:5229

約数の個数: 16

約数和(自身を含む): 125697600

約数和(自身を除く): 44319734

約数列:

[1, 2, 41, 82, 199, 398, 4987, 8159, 9974, 16318, 204467, 408934, 992413, 1984826, 40688933, 81377866]

約数ペア:

[(1, 81377866), (2, 40688933), (41, 1984826), (82, 992413), (199, 408934), (398, 204467), (4987, 16318), (8159, 9974)]