20627680

素因数分解:

$2^5\times 5^1\times {\mathrm{128923}}^1$

素因数の和:128938

約数の個数: 24

約数和(自身を含む): 48733272

約数和(自身を除く): 28105592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 128923, 257846, 515692, 644615, 1031384, 1289230, 2062768, 2578460, 4125536, 5156920, 10313840, 20627680]

約数ペア:

[(1, 20627680), (2, 10313840), (4, 5156920), (5, 4125536), (8, 2578460), (10, 2062768), (16, 1289230), (20, 1031384), (32, 644615), (40, 515692), (80, 257846), (160, 128923)]