7889540

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{937}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 16625112

約数和(自身を除く): 8735572

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 937, 1684, 1874, 2105, 3748, 4210, 4685, 8420, 9370, 18740, 394477, 788954, 1577908, 1972385, 3944770, 7889540]

約数ペア:

[(1, 7889540), (2, 3944770), (4, 1972385), (5, 1577908), (10, 788954), (20, 394477), (421, 18740), (842, 9370), (937, 8420), (1684, 4685), (1874, 4210), (2105, 3748)]