81752560

素因数分解:

$2^4\times 5^1\times {\mathrm{1021907}}^1$

素因数の和:1021920

約数の個数: 20

約数和(自身を含む): 190074888

約数和(自身を除く): 108322328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1021907, 2043814, 4087628, 5109535, 8175256, 10219070, 16350512, 20438140, 40876280, 81752560]

約数ペア:

[(1, 81752560), (2, 40876280), (4, 20438140), (5, 16350512), (8, 10219070), (10, 8175256), (16, 5109535), (20, 4087628), (40, 2043814), (80, 1021907)]