19902525

素因数分解:

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

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 33063360

約数和(自身を除く): 13160835

約数列:

[1, 3, 5, 15, 25, 75, 263, 789, 1009, 1315, 3027, 3945, 5045, 6575, 15135, 19725, 25225, 75675, 265367, 796101, 1326835, 3980505, 6634175, 19902525]

約数ペア:

[(1, 19902525), (3, 6634175), (5, 3980505), (15, 1326835), (25, 796101), (75, 265367), (263, 75675), (789, 25225), (1009, 19725), (1315, 15135), (3027, 6575), (3945, 5045)]