19039220

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6389}}^1$

素因数の和:6547

約数の個数: 24

約数和(自身を含む): 40257000

約数和(自身を除く): 21217780

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6389, 12778, 25556, 31945, 63890, 127780, 951961, 1903922, 3807844, 4759805, 9519610, 19039220]

約数ペア:

[(1, 19039220), (2, 9519610), (4, 4759805), (5, 3807844), (10, 1903922), (20, 951961), (149, 127780), (298, 63890), (596, 31945), (745, 25556), (1490, 12778), (2980, 6389)]