81487910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{28393}}^1$

素因数の和:28448

約数の個数: 32

約数和(自身を含む): 171726912

約数和(自身を除く): 90239002

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 28393, 56786, 141965, 198751, 283930, 397502, 993755, 1164113, 1987510, 2328226, 5820565, 8148791, 11641130, 16297582, 40743955, 81487910]

約数ペア:

[(1, 81487910), (2, 40743955), (5, 16297582), (7, 11641130), (10, 8148791), (14, 5820565), (35, 2328226), (41, 1987510), (70, 1164113), (82, 993755), (205, 397502), (287, 283930), (410, 198751), (574, 141965), (1435, 56786), (2870, 28393)]