66885880

素因数分解:

$2^3\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1489}}^1$

素因数の和:2623

約数の個数: 32

約数和(自身を含む): 150728400

約数和(自身を除く): 83842520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1123, 1489, 2246, 2978, 4492, 5615, 5956, 7445, 8984, 11230, 11912, 14890, 22460, 29780, 44920, 59560, 1672147, 3344294, 6688588, 8360735, 13377176, 16721470, 33442940, 66885880]

約数ペア:

[(1, 66885880), (2, 33442940), (4, 16721470), (5, 13377176), (8, 8360735), (10, 6688588), (20, 3344294), (40, 1672147), (1123, 59560), (1489, 44920), (2246, 29780), (2978, 22460), (4492, 14890), (5615, 11912), (5956, 11230), (7445, 8984)]