800749780

素因数分解:

$2^2\times 5^1\times {\mathrm{40037489}}^1$

素因数の和:40037498

約数の個数: 12

約数和(自身を含む): 1681574580

約数和(自身を除く): 880824800

約数列:

[1, 2, 4, 5, 10, 20, 40037489, 80074978, 160149956, 200187445, 400374890, 800749780]

約数ペア:

[(1, 800749780), (2, 400374890), (4, 200187445), (5, 160149956), (10, 80074978), (20, 40037489)]