15918010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 30384000

約数和(自身を除く): 14465990

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 199, 398, 421, 842, 995, 1990, 2105, 3781, 4210, 7562, 7999, 15998, 18905, 37810, 39995, 79990, 83779, 167558, 418895, 837790, 1591801, 3183602, 7959005, 15918010]

約数ペア:

[(1, 15918010), (2, 7959005), (5, 3183602), (10, 1591801), (19, 837790), (38, 418895), (95, 167558), (190, 83779), (199, 79990), (398, 39995), (421, 37810), (842, 18905), (995, 15998), (1990, 7999), (2105, 7562), (3781, 4210)]