2785074580

素因数分解:

$2^2\times 5^1\times {\mathrm{6991}}^1\times {\mathrm{19919}}^1$

素因数の和:26919

約数の個数: 24

約数和(自身を含む): 5849786880

約数和(自身を除く): 3064712300

約数列:

[1, 2, 4, 5, 10, 20, 6991, 13982, 19919, 27964, 34955, 39838, 69910, 79676, 99595, 139820, 199190, 398380, 139253729, 278507458, 557014916, 696268645, 1392537290, 2785074580]

約数ペア:

[(1, 2785074580), (2, 1392537290), (4, 696268645), (5, 557014916), (10, 278507458), (20, 139253729), (6991, 398380), (13982, 199190), (19919, 139820), (27964, 99595), (34955, 79676), (39838, 69910)]