9879280

素因数分解:

$2^4\times 5^1\times {\mathrm{123491}}^1$

素因数の和:123504

約数の個数: 20

約数和(自身を含む): 22969512

約数和(自身を除く): 13090232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123491, 246982, 493964, 617455, 987928, 1234910, 1975856, 2469820, 4939640, 9879280]

約数ペア:

[(1, 9879280), (2, 4939640), (4, 2469820), (5, 1975856), (8, 1234910), (10, 987928), (16, 617455), (20, 493964), (40, 246982), (80, 123491)]