2788804975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{921919}}^1$

素因数の和:921951

約数の個数: 18

約数和(自身を含む): 3801076160

約数和(自身を除く): 1012271185

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 921919, 4609595, 10141109, 23047975, 50705545, 111552199, 253527725, 557760995, 2788804975]

約数ペア:

[(1, 2788804975), (5, 557760995), (11, 253527725), (25, 111552199), (55, 50705545), (121, 23047975), (275, 10141109), (605, 4609595), (3025, 921919)]