20386556

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 39299904

約数和(自身を除く): 18913348

約数列:

[1, 2, 4, 23, 37, 46, 53, 74, 92, 106, 113, 148, 212, 226, 452, 851, 1219, 1702, 1961, 2438, 2599, 3404, 3922, 4181, 4876, 5198, 5989, 7844, 8362, 10396, 11978, 16724, 23956, 45103, 90206, 96163, 137747, 180412, 192326, 221593, 275494, 384652, 443186, 550988, 886372, 5096639, 10193278, 20386556]

約数ペア:

[(1, 20386556), (2, 10193278), (4, 5096639), (23, 886372), (37, 550988), (46, 443186), (53, 384652), (74, 275494), (92, 221593), (106, 192326), (113, 180412), (148, 137747), (212, 96163), (226, 90206), (452, 45103), (851, 23956), (1219, 16724), (1702, 11978), (1961, 10396), (2438, 8362), (2599, 7844), (3404, 5989), (3922, 5198), (4181, 4876)]