1064375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:164

約数の個数: 20

約数和(自身を含む): 1443288

約数和(自身を除く): 378913

約数列:

[1, 5, 13, 25, 65, 125, 131, 325, 625, 655, 1625, 1703, 3275, 8125, 8515, 16375, 42575, 81875, 212875, 1064375]

約数ペア:

[(1, 1064375), (5, 212875), (13, 81875), (25, 42575), (65, 16375), (125, 8515), (131, 8125), (325, 3275), (625, 1703), (655, 1625)]