39989156

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1721}}^1$

素因数の和:1919

約数の個数: 24

約数和(自身を含む): 72372216

約数和(自身を除く): 32383060

約数列:

[1, 2, 4, 37, 74, 148, 157, 314, 628, 1721, 3442, 5809, 6884, 11618, 23236, 63677, 127354, 254708, 270197, 540394, 1080788, 9997289, 19994578, 39989156]

約数ペア:

[(1, 39989156), (2, 19994578), (4, 9997289), (37, 1080788), (74, 540394), (148, 270197), (157, 254708), (314, 127354), (628, 63677), (1721, 23236), (3442, 11618), (5809, 6884)]