20843780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33619}}^1$

素因数の和:33659

約数の個数: 24

約数和(自身を含む): 45185280

約数和(自身を除く): 24341500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33619, 67238, 134476, 168095, 336190, 672380, 1042189, 2084378, 4168756, 5210945, 10421890, 20843780]

約数ペア:

[(1, 20843780), (2, 10421890), (4, 5210945), (5, 4168756), (10, 2084378), (20, 1042189), (31, 672380), (62, 336190), (124, 168095), (155, 134476), (310, 67238), (620, 33619)]