81609156740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2693}}^1\times {\mathrm{13901}}^1$

素因数の和:16712

約数の個数: 48

約数和(自身を含む): 173028184560

約数和(自身を除く): 91419027820

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 2693, 5386, 10772, 13465, 13901, 26930, 27802, 53860, 55604, 69505, 139010, 278020, 293537, 587074, 1174148, 1467685, 1515209, 2935370, 3030418, 5870740, 6060836, 7576045, 15152090, 30304180, 37435393, 74870786, 149741572, 187176965, 374353930, 748707860, 4080457837, 8160915674, 16321831348, 20402289185, 40804578370, 81609156740]

約数ペア:

[(1, 81609156740), (2, 40804578370), (4, 20402289185), (5, 16321831348), (10, 8160915674), (20, 4080457837), (109, 748707860), (218, 374353930), (436, 187176965), (545, 149741572), (1090, 74870786), (2180, 37435393), (2693, 30304180), (5386, 15152090), (10772, 7576045), (13465, 6060836), (13901, 5870740), (26930, 3030418), (27802, 2935370), (53860, 1515209), (55604, 1467685), (69505, 1174148), (139010, 587074), (278020, 293537)]