78391225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1447}}^1$

素因数の和:1665

約数の個数: 24

約数和(自身を含む): 106653888

約数和(自身を除く): 28262663

約数列:

[1, 5, 11, 25, 55, 197, 275, 985, 1447, 2167, 4925, 7235, 10835, 15917, 36175, 54175, 79585, 285059, 397925, 1425295, 3135649, 7126475, 15678245, 78391225]

約数ペア:

[(1, 78391225), (5, 15678245), (11, 7126475), (25, 3135649), (55, 1425295), (197, 397925), (275, 285059), (985, 79585), (1447, 54175), (2167, 36175), (4925, 15917), (7235, 10835)]