66754840

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{8647}}^1$

素因数の和:8851

約数の個数: 32

約数和(自身を含む): 150994080

約数和(自身を除く): 84239240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 8647, 17294, 34588, 43235, 69176, 86470, 172940, 345880, 1668871, 3337742, 6675484, 8344355, 13350968, 16688710, 33377420, 66754840]

約数ペア:

[(1, 66754840), (2, 33377420), (4, 16688710), (5, 13350968), (8, 8344355), (10, 6675484), (20, 3337742), (40, 1668871), (193, 345880), (386, 172940), (772, 86470), (965, 69176), (1544, 43235), (1930, 34588), (3860, 17294), (7720, 8647)]