66621140

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{15787}}^1$

素因数の和:16007

約数の個数: 24

約数和(自身を含む): 140576352

約数和(自身を除く): 73955212

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 15787, 31574, 63148, 78935, 157870, 315740, 3331057, 6662114, 13324228, 16655285, 33310570, 66621140]

約数ペア:

[(1, 66621140), (2, 33310570), (4, 16655285), (5, 13324228), (10, 6662114), (20, 3331057), (211, 315740), (422, 157870), (844, 78935), (1055, 63148), (2110, 31574), (4220, 15787)]