289054375

素因数分解:

$5^4\times {\mathrm{109}}^1\times {\mathrm{4243}}^1$

素因数の和:4372

約数の個数: 20

約数和(自身を含む): 364602040

約数和(自身を除く): 75547665

約数列:

[1, 5, 25, 109, 125, 545, 625, 2725, 4243, 13625, 21215, 68125, 106075, 462487, 530375, 2312435, 2651875, 11562175, 57810875, 289054375]

約数ペア:

[(1, 289054375), (5, 57810875), (25, 11562175), (109, 2651875), (125, 2312435), (545, 530375), (625, 462487), (2725, 106075), (4243, 68125), (13625, 21215)]