258700

素因数分解:

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

素因数の和:226

約数の個数: 36

約数和(自身を含む): 607600

約数和(自身を除く): 348900

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 199, 260, 325, 398, 650, 796, 995, 1300, 1990, 2587, 3980, 4975, 5174, 9950, 10348, 12935, 19900, 25870, 51740, 64675, 129350, 258700]

約数ペア:

[(1, 258700), (2, 129350), (4, 64675), (5, 51740), (10, 25870), (13, 19900), (20, 12935), (25, 10348), (26, 9950), (50, 5174), (52, 4975), (65, 3980), (100, 2587), (130, 1990), (199, 1300), (260, 995), (325, 796), (398, 650)]