7200560

素因数分解:

$2^4\times 5^1\times {\mathrm{90007}}^1$

素因数の和:90020

約数の個数: 20

約数和(自身を含む): 16741488

約数和(自身を除く): 9540928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 90007, 180014, 360028, 450035, 720056, 900070, 1440112, 1800140, 3600280, 7200560]

約数ペア:

[(1, 7200560), (2, 3600280), (4, 1800140), (5, 1440112), (8, 900070), (10, 720056), (16, 450035), (20, 360028), (40, 180014), (80, 90007)]