20159901260

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7936969}}^1$

素因数の和:7937105

約数の個数: 24

約数和(自身を含む): 42669150720

約数和(自身を除く): 22509249460

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7936969, 15873938, 31747876, 39684845, 79369690, 158739380, 1007995063, 2015990126, 4031980252, 5039975315, 10079950630, 20159901260]

約数ペア:

[(1, 20159901260), (2, 10079950630), (4, 5039975315), (5, 4031980252), (10, 2015990126), (20, 1007995063), (127, 158739380), (254, 79369690), (508, 39684845), (635, 31747876), (1270, 15873938), (2540, 7936969)]