66737960

素因数分解:

$2^3\times 5^1\times {\mathrm{1668449}}^1$

素因数の和:1668460

約数の個数: 16

約数和(自身を含む): 150160500

約数和(自身を除く): 83422540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1668449, 3336898, 6673796, 8342245, 13347592, 16684490, 33368980, 66737960]

約数ペア:

[(1, 66737960), (2, 33368980), (4, 16684490), (5, 13347592), (8, 8342245), (10, 6673796), (20, 3336898), (40, 1668449)]