137982800

素因数分解:

$2^4\times 5^2\times {\mathrm{344957}}^1$

素因数の和:344975

約数の個数: 30

約数和(自身を含む): 331504638

約数和(自身を除く): 193521838

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 344957, 689914, 1379828, 1724785, 2759656, 3449570, 5519312, 6899140, 8623925, 13798280, 17247850, 27596560, 34495700, 68991400, 137982800]

約数ペア:

[(1, 137982800), (2, 68991400), (4, 34495700), (5, 27596560), (8, 17247850), (10, 13798280), (16, 8623925), (20, 6899140), (25, 5519312), (40, 3449570), (50, 2759656), (80, 1724785), (100, 1379828), (200, 689914), (400, 344957)]