121387640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{275881}}^1$

素因数の和:275903

約数の個数: 32

約数和(自身を含む): 297952560

約数和(自身を除く): 176564920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 275881, 551762, 1103524, 1379405, 2207048, 2758810, 3034691, 5517620, 6069382, 11035240, 12138764, 15173455, 24277528, 30346910, 60693820, 121387640]

約数ペア:

[(1, 121387640), (2, 60693820), (4, 30346910), (5, 24277528), (8, 15173455), (10, 12138764), (11, 11035240), (20, 6069382), (22, 5517620), (40, 3034691), (44, 2758810), (55, 2207048), (88, 1379405), (110, 1103524), (220, 551762), (440, 275881)]