833125

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:94

約数の個数: 20

約数和(自身を含む): 1099648

約数和(自身を除く): 266523

約数列:

[1, 5, 25, 31, 43, 125, 155, 215, 625, 775, 1075, 1333, 3875, 5375, 6665, 19375, 26875, 33325, 166625, 833125]

約数ペア:

[(1, 833125), (5, 166625), (25, 33325), (31, 26875), (43, 19375), (125, 6665), (155, 5375), (215, 3875), (625, 1333), (775, 1075)]