20930440

素因数分解:

$2^3\times 5^1\times {\mathrm{523261}}^1$

素因数の和:523272

約数の個数: 16

約数和(自身を含む): 47093580

約数和(自身を除く): 26163140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523261, 1046522, 2093044, 2616305, 4186088, 5232610, 10465220, 20930440]

約数ペア:

[(1, 20930440), (2, 10465220), (4, 5232610), (5, 4186088), (8, 2616305), (10, 2093044), (20, 1046522), (40, 523261)]