66952180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{81649}}^1$

素因数の和:81699

約数の個数: 24

約数和(自身を含む): 144030600

約数和(自身を除く): 77078420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 81649, 163298, 326596, 408245, 816490, 1632980, 3347609, 6695218, 13390436, 16738045, 33476090, 66952180]

約数ペア:

[(1, 66952180), (2, 33476090), (4, 16738045), (5, 13390436), (10, 6695218), (20, 3347609), (41, 1632980), (82, 816490), (164, 408245), (205, 326596), (410, 163298), (820, 81649)]