64903900

素因数分解:

$2^2\times 5^2\times {\mathrm{649039}}^1$

素因数の和:649053

約数の個数: 18

約数和(自身を含む): 140841680

約数和(自身を除く): 75937780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 649039, 1298078, 2596156, 3245195, 6490390, 12980780, 16225975, 32451950, 64903900]

約数ペア:

[(1, 64903900), (2, 32451950), (4, 16225975), (5, 12980780), (10, 6490390), (20, 3245195), (25, 2596156), (50, 1298078), (100, 649039)]