20687600

素因数分解:

$2^4\times 5^2\times {\mathrm{51719}}^1$

素因数の和:51737

約数の個数: 30

約数和(自身を含む): 49702920

約数和(自身を除く): 29015320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51719, 103438, 206876, 258595, 413752, 517190, 827504, 1034380, 1292975, 2068760, 2585950, 4137520, 5171900, 10343800, 20687600]

約数ペア:

[(1, 20687600), (2, 10343800), (4, 5171900), (5, 4137520), (8, 2585950), (10, 2068760), (16, 1292975), (20, 1034380), (25, 827504), (40, 517190), (50, 413752), (80, 258595), (100, 206876), (200, 103438), (400, 51719)]