51740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 117600

約数和(自身を除く): 65860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 796, 995, 1990, 2587, 3980, 5174, 10348, 12935, 25870, 51740]

約数ペア:

[(1, 51740), (2, 25870), (4, 12935), (5, 10348), (10, 5174), (13, 3980), (20, 2587), (26, 1990), (52, 995), (65, 796), (130, 398), (199, 260)]