19859655640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45135581}}^1$

素因数の和:45135603

約数の個数: 32

約数和(自身を含む): 48746428560

約数和(自身を除く): 28886772920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45135581, 90271162, 180542324, 225677905, 361084648, 451355810, 496491391, 902711620, 992982782, 1805423240, 1985965564, 2482456955, 3971931128, 4964913910, 9929827820, 19859655640]

約数ペア:

[(1, 19859655640), (2, 9929827820), (4, 4964913910), (5, 3971931128), (8, 2482456955), (10, 1985965564), (11, 1805423240), (20, 992982782), (22, 902711620), (40, 496491391), (44, 451355810), (55, 361084648), (88, 225677905), (110, 180542324), (220, 90271162), (440, 45135581)]