20082128

素因数分解:

$2^4\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:105

約数の個数: 80

約数和(自身を含む): 45747072

約数和(自身を除く): 25664944

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 41, 44, 46, 82, 88, 92, 121, 164, 176, 184, 242, 253, 328, 368, 451, 484, 506, 656, 902, 943, 968, 1012, 1331, 1804, 1886, 1936, 2024, 2662, 2783, 3608, 3772, 4048, 4961, 5324, 5566, 7216, 7544, 9922, 10373, 10648, 11132, 15088, 19844, 20746, 21296, 22264, 30613, 39688, 41492, 44528, 54571, 61226, 79376, 82984, 109142, 114103, 122452, 165968, 218284, 228206, 244904, 436568, 456412, 489808, 873136, 912824, 1255133, 1825648, 2510266, 5020532, 10041064, 20082128]

約数ペア:

[(1, 20082128), (2, 10041064), (4, 5020532), (8, 2510266), (11, 1825648), (16, 1255133), (22, 912824), (23, 873136), (41, 489808), (44, 456412), (46, 436568), (82, 244904), (88, 228206), (92, 218284), (121, 165968), (164, 122452), (176, 114103), (184, 109142), (242, 82984), (253, 79376), (328, 61226), (368, 54571), (451, 44528), (484, 41492), (506, 39688), (656, 30613), (902, 22264), (943, 21296), (968, 20746), (1012, 19844), (1331, 15088), (1804, 11132), (1886, 10648), (1936, 10373), (2024, 9922), (2662, 7544), (2783, 7216), (3608, 5566), (3772, 5324), (4048, 4961)]