20540505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 35164800

約数和(自身を除く): 14624295

約数列:

[1, 3, 5, 15, 17, 51, 85, 109, 255, 327, 545, 739, 1635, 1853, 2217, 3695, 5559, 9265, 11085, 12563, 27795, 37689, 62815, 80551, 188445, 241653, 402755, 1208265, 1369367, 4108101, 6846835, 20540505]

約数ペア:

[(1, 20540505), (3, 6846835), (5, 4108101), (15, 1369367), (17, 1208265), (51, 402755), (85, 241653), (109, 188445), (255, 80551), (327, 62815), (545, 37689), (739, 27795), (1635, 12563), (1853, 11085), (2217, 9265), (3695, 5559)]