211399137080

素因数分解:

$2^3\times 5^1\times {\mathrm{5284978427}}^1$

素因数の和:5284978438

約数の個数: 16

約数和(自身を含む): 475648058520

約数和(自身を除く): 264248921440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5284978427, 10569956854, 21139913708, 26424892135, 42279827416, 52849784270, 105699568540, 211399137080]

約数ペア:

[(1, 211399137080), (2, 105699568540), (4, 52849784270), (5, 42279827416), (8, 26424892135), (10, 21139913708), (20, 10569956854), (40, 5284978427)]