20390080

素因数分解:

$2^6\times 5^1\times {\mathrm{63719}}^1$

素因数の和:63736

約数の個数: 28

約数和(自身を含む): 48554640

約数和(自身を除く): 28164560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63719, 127438, 254876, 318595, 509752, 637190, 1019504, 1274380, 2039008, 2548760, 4078016, 5097520, 10195040, 20390080]

約数ペア:

[(1, 20390080), (2, 10195040), (4, 5097520), (5, 4078016), (8, 2548760), (10, 2039008), (16, 1274380), (20, 1019504), (32, 637190), (40, 509752), (64, 318595), (80, 254876), (160, 127438), (320, 63719)]