81010180

素因数分解:

$2^2\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{2713}}^1$

素因数の和:4215

約数の個数: 24

約数和(自身を含む): 170298072

約数和(自身を除く): 89287892

約数列:

[1, 2, 4, 5, 10, 20, 1493, 2713, 2986, 5426, 5972, 7465, 10852, 13565, 14930, 27130, 29860, 54260, 4050509, 8101018, 16202036, 20252545, 40505090, 81010180]

約数ペア:

[(1, 81010180), (2, 40505090), (4, 20252545), (5, 16202036), (10, 8101018), (20, 4050509), (1493, 54260), (2713, 29860), (2986, 27130), (5426, 14930), (5972, 13565), (7465, 10852)]