90440425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{212801}}^1$

素因数の和:212828

約数の個数: 12

約数和(自身を含む): 118743516

約数和(自身を除く): 28303091

約数列:

[1, 5, 17, 25, 85, 425, 212801, 1064005, 3617617, 5320025, 18088085, 90440425]

約数ペア:

[(1, 90440425), (5, 18088085), (17, 5320025), (25, 3617617), (85, 1064005), (425, 212801)]