72021100

素因数分解:

$2^2\times 5^2\times {\mathrm{720211}}^1$

素因数の和:720225

約数の個数: 18

約数和(自身を含む): 156286004

約数和(自身を除く): 84264904

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 720211, 1440422, 2880844, 3601055, 7202110, 14404220, 18005275, 36010550, 72021100]

約数ペア:

[(1, 72021100), (2, 36010550), (4, 18005275), (5, 14404220), (10, 7202110), (20, 3601055), (25, 2880844), (50, 1440422), (100, 720211)]