20790550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{367}}^1$

素因数の和:493

約数の個数: 48

約数和(自身を含む): 42711552

約数和(自身を除く): 21921002

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 103, 110, 206, 275, 367, 515, 550, 734, 1030, 1133, 1835, 2266, 2575, 3670, 4037, 5150, 5665, 8074, 9175, 11330, 18350, 20185, 28325, 37801, 40370, 56650, 75602, 100925, 189005, 201850, 378010, 415811, 831622, 945025, 1890050, 2079055, 4158110, 10395275, 20790550]

約数ペア:

[(1, 20790550), (2, 10395275), (5, 4158110), (10, 2079055), (11, 1890050), (22, 945025), (25, 831622), (50, 415811), (55, 378010), (103, 201850), (110, 189005), (206, 100925), (275, 75602), (367, 56650), (515, 40370), (550, 37801), (734, 28325), (1030, 20185), (1133, 18350), (1835, 11330), (2266, 9175), (2575, 8074), (3670, 5665), (4037, 5150)]