20063180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 36

約数和(自身を含む): 42949200

約数和(自身を除く): 22886020

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 199, 284, 355, 398, 710, 796, 995, 1420, 1990, 3980, 5041, 10082, 14129, 20164, 25205, 28258, 50410, 56516, 70645, 100820, 141290, 282580, 1003159, 2006318, 4012636, 5015795, 10031590, 20063180]

約数ペア:

[(1, 20063180), (2, 10031590), (4, 5015795), (5, 4012636), (10, 2006318), (20, 1003159), (71, 282580), (142, 141290), (199, 100820), (284, 70645), (355, 56516), (398, 50410), (710, 28258), (796, 25205), (995, 20164), (1420, 14129), (1990, 10082), (3980, 5041)]