20342860

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8009}}^1$

素因数の和:8145

約数の個数: 24

約数和(自身を含む): 43061760

約数和(自身を除く): 22718900

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 8009, 16018, 32036, 40045, 80090, 160180, 1017143, 2034286, 4068572, 5085715, 10171430, 20342860]

約数ペア:

[(1, 20342860), (2, 10171430), (4, 5085715), (5, 4068572), (10, 2034286), (20, 1017143), (127, 160180), (254, 80090), (508, 40045), (635, 32036), (1270, 16018), (2540, 8009)]