77388580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54499}}^1$

素因数の和:54579

約数の個数: 24

約数和(自身を含む): 164808000

約数和(自身を除く): 87419420

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 54499, 108998, 217996, 272495, 544990, 1089980, 3869429, 7738858, 15477716, 19347145, 38694290, 77388580]

約数ペア:

[(1, 77388580), (2, 38694290), (4, 19347145), (5, 15477716), (10, 7738858), (20, 3869429), (71, 1089980), (142, 544990), (284, 272495), (355, 217996), (710, 108998), (1420, 54499)]