200012720

素因数分解:

$2^4\times 5^1\times {\mathrm{2500159}}^1$

素因数の和:2500172

約数の個数: 20

約数和(自身を含む): 465029760

約数和(自身を除く): 265017040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2500159, 5000318, 10000636, 12500795, 20001272, 25001590, 40002544, 50003180, 100006360, 200012720]

約数ペア:

[(1, 200012720), (2, 100006360), (4, 50003180), (5, 40002544), (8, 25001590), (10, 20001272), (16, 12500795), (20, 10000636), (40, 5000318), (80, 2500159)]