9963125

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:878

約数の個数: 20

約数和(自身を含む): 13120800

約数和(自身を除く): 3157675

約数列:

[1, 5, 19, 25, 95, 125, 475, 625, 839, 2375, 4195, 11875, 15941, 20975, 79705, 104875, 398525, 524375, 1992625, 9963125]

約数ペア:

[(1, 9963125), (5, 1992625), (19, 524375), (25, 398525), (95, 104875), (125, 79705), (475, 20975), (625, 15941), (839, 11875), (2375, 4195)]