28003875

素因数分解:

$3^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{1409}}^1$

素因数の和:1480

約数の個数: 32

約数和(自身を含む): 47511360

約数和(自身を除く): 19507485

約数列:

[1, 3, 5, 15, 25, 53, 75, 125, 159, 265, 375, 795, 1325, 1409, 3975, 4227, 6625, 7045, 19875, 21135, 35225, 74677, 105675, 176125, 224031, 373385, 528375, 1120155, 1866925, 5600775, 9334625, 28003875]

約数ペア:

[(1, 28003875), (3, 9334625), (5, 5600775), (15, 1866925), (25, 1120155), (53, 528375), (75, 373385), (125, 224031), (159, 176125), (265, 105675), (375, 74677), (795, 35225), (1325, 21135), (1409, 19875), (3975, 7045), (4227, 6625)]