54272140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208739}}^1$

素因数の和:208761

約数の個数: 24

約数和(自身を含む): 122739120

約数和(自身を除く): 68466980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 208739, 417478, 834956, 1043695, 2087390, 2713607, 4174780, 5427214, 10854428, 13568035, 27136070, 54272140]

約数ペア:

[(1, 54272140), (2, 27136070), (4, 13568035), (5, 10854428), (10, 5427214), (13, 4174780), (20, 2713607), (26, 2087390), (52, 1043695), (65, 834956), (130, 417478), (260, 208739)]