28511725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 38836800

約数和(自身を除く): 10325075

約数列:

[1, 5, 11, 25, 55, 199, 275, 521, 995, 2189, 2605, 4975, 5731, 10945, 13025, 28655, 54725, 103679, 143275, 518395, 1140469, 2591975, 5702345, 28511725]

約数ペア:

[(1, 28511725), (5, 5702345), (11, 2591975), (25, 1140469), (55, 518395), (199, 143275), (275, 103679), (521, 54725), (995, 28655), (2189, 13025), (2605, 10945), (4975, 5731)]