72009100

素因数分解:

$2^2\times 5^2\times {\mathrm{720091}}^1$

素因数の和:720105

約数の個数: 18

約数和(自身を含む): 156259964

約数和(自身を除く): 84250864

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 720091, 1440182, 2880364, 3600455, 7200910, 14401820, 18002275, 36004550, 72009100]

約数ペア:

[(1, 72009100), (2, 36004550), (4, 18002275), (5, 14401820), (10, 7200910), (20, 3600455), (25, 2880364), (50, 1440182), (100, 720091)]