15872125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 21490560

約数和(自身を除く): 5618435

約数列:

[1, 5, 19, 25, 41, 95, 125, 163, 205, 475, 779, 815, 1025, 2375, 3097, 3895, 4075, 5125, 6683, 15485, 19475, 20375, 33415, 77425, 97375, 126977, 167075, 387125, 634885, 835375, 3174425, 15872125]

約数ペア:

[(1, 15872125), (5, 3174425), (19, 835375), (25, 634885), (41, 387125), (95, 167075), (125, 126977), (163, 97375), (205, 77425), (475, 33415), (779, 20375), (815, 19475), (1025, 15485), (2375, 6683), (3097, 5125), (3895, 4075)]