20019375

素因数分解:

$3^2\times 5^4\times {\mathrm{3559}}^1$

素因数の和:3585

約数の個数: 30

約数和(自身を含む): 36144680

約数和(自身を除く): 16125305

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 3559, 5625, 10677, 17795, 32031, 53385, 88975, 160155, 266925, 444875, 800775, 1334625, 2224375, 4003875, 6673125, 20019375]

約数ペア:

[(1, 20019375), (3, 6673125), (5, 4003875), (9, 2224375), (15, 1334625), (25, 800775), (45, 444875), (75, 266925), (125, 160155), (225, 88975), (375, 53385), (625, 32031), (1125, 17795), (1875, 10677), (3559, 5625)]