1639905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 2851200

約数和(自身を除く): 1211295

約数列:

[1, 3, 5, 15, 17, 51, 59, 85, 109, 177, 255, 295, 327, 545, 885, 1003, 1635, 1853, 3009, 5015, 5559, 6431, 9265, 15045, 19293, 27795, 32155, 96465, 109327, 327981, 546635, 1639905]

約数ペア:

[(1, 1639905), (3, 546635), (5, 327981), (15, 109327), (17, 96465), (51, 32155), (59, 27795), (85, 19293), (109, 15045), (177, 9265), (255, 6431), (295, 5559), (327, 5015), (545, 3009), (885, 1853), (1003, 1635)]