20456210

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{13729}}^1$

素因数の和:13885

約数の個数: 16

約数和(自身を含む): 37071000

約数和(自身を除く): 16614790

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 13729, 27458, 68645, 137290, 2045621, 4091242, 10228105, 20456210]

約数ペア:

[(1, 20456210), (2, 10228105), (5, 4091242), (10, 2045621), (149, 137290), (298, 68645), (745, 27458), (1490, 13729)]