129402200

素因数分解:

$2^3\times 5^2\times {\mathrm{647011}}^1$

素因数の和:647027

約数の個数: 24

約数和(自身を含む): 300860580

約数和(自身を除く): 171458380

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 647011, 1294022, 2588044, 3235055, 5176088, 6470110, 12940220, 16175275, 25880440, 32350550, 64701100, 129402200]

約数ペア:

[(1, 129402200), (2, 64701100), (4, 32350550), (5, 25880440), (8, 16175275), (10, 12940220), (20, 6470110), (25, 5176088), (40, 3235055), (50, 2588044), (100, 1294022), (200, 647011)]