20081647725

素因数分解:

$3^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1009}}^2$

素因数の和:2294

約数の個数: 36

約数和(自身を含む): 33360962976

約数和(自身を除く): 13279315251

約数列:

[1, 3, 5, 15, 25, 75, 263, 789, 1009, 1315, 3027, 3945, 5045, 6575, 15135, 19725, 25225, 75675, 265367, 796101, 1018081, 1326835, 3054243, 3980505, 5090405, 6634175, 15271215, 19902525, 25452025, 76356075, 267755303, 803265909, 1338776515, 4016329545, 6693882575, 20081647725]

約数ペア:

[(1, 20081647725), (3, 6693882575), (5, 4016329545), (15, 1338776515), (25, 803265909), (75, 267755303), (263, 76356075), (789, 25452025), (1009, 19902525), (1315, 15271215), (3027, 6634175), (3945, 5090405), (5045, 3980505), (6575, 3054243), (15135, 1326835), (19725, 1018081), (25225, 796101), (75675, 265367)]