2030225

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{281}}^1$

素因数の和:325

約数の個数: 18

約数和(自身を含む): 2683794

約数和(自身を除く): 653569

約数列:

[1, 5, 17, 25, 85, 281, 289, 425, 1405, 1445, 4777, 7025, 7225, 23885, 81209, 119425, 406045, 2030225]

約数ペア:

[(1, 2030225), (5, 406045), (17, 119425), (25, 81209), (85, 23885), (281, 7225), (289, 7025), (425, 4777), (1405, 1445)]