78820775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{647}}^1$

素因数の和:1111

約数の個数: 24

約数和(自身を含む): 107028864

約数和(自身を除く): 28208089

約数列:

[1, 5, 11, 25, 55, 275, 443, 647, 2215, 3235, 4873, 7117, 11075, 16175, 24365, 35585, 121825, 177925, 286621, 1433105, 3152831, 7165525, 15764155, 78820775]

約数ペア:

[(1, 78820775), (5, 15764155), (11, 7165525), (25, 3152831), (55, 1433105), (275, 286621), (443, 177925), (647, 121825), (2215, 35585), (3235, 24365), (4873, 16175), (7117, 11075)]