12970820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3259}}^1$

素因数の和:3467

約数の個数: 24

約数和(自身を含む): 27384000

約数和(自身を除く): 14413180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3259, 3980, 6518, 13036, 16295, 32590, 65180, 648541, 1297082, 2594164, 3242705, 6485410, 12970820]

約数ペア:

[(1, 12970820), (2, 6485410), (4, 3242705), (5, 2594164), (10, 1297082), (20, 648541), (199, 65180), (398, 32590), (796, 16295), (995, 13036), (1990, 6518), (3259, 3980)]