20956330

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18234710

約数列:

[1, 2, 5, 10, 41, 79, 82, 158, 205, 395, 410, 647, 790, 1294, 3235, 3239, 6470, 6478, 16195, 26527, 32390, 51113, 53054, 102226, 132635, 255565, 265270, 511130, 2095633, 4191266, 10478165, 20956330]

約数ペア:

[(1, 20956330), (2, 10478165), (5, 4191266), (10, 2095633), (41, 511130), (79, 265270), (82, 255565), (158, 132635), (205, 102226), (395, 53054), (410, 51113), (647, 32390), (790, 26527), (1294, 16195), (3235, 6478), (3239, 6470)]