72040275

素因数分解:

$3^2\times 5^2\times {\mathrm{320179}}^1$

素因数の和:320195

約数の個数: 18

約数和(自身を含む): 129032540

約数和(自身を除く): 56992265

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 320179, 960537, 1600895, 2881611, 4802685, 8004475, 14408055, 24013425, 72040275]

約数ペア:

[(1, 72040275), (3, 24013425), (5, 14408055), (9, 8004475), (15, 4802685), (25, 2881611), (45, 1600895), (75, 960537), (225, 320179)]