31320820

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1931}}^1$

素因数の和:2751

約数の個数: 24

約数和(自身を含む): 65888928

約数和(自身を除く): 34568108

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 1931, 3244, 3862, 4055, 7724, 8110, 9655, 16220, 19310, 38620, 1566041, 3132082, 6264164, 7830205, 15660410, 31320820]

約数ペア:

[(1, 31320820), (2, 15660410), (4, 7830205), (5, 6264164), (10, 3132082), (20, 1566041), (811, 38620), (1622, 19310), (1931, 16220), (3244, 9655), (3862, 8110), (4055, 7724)]