205787140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{791489}}^1$

素因数の和:791511

約数の個数: 24

約数和(自身を含む): 465396120

約数和(自身を除く): 259608980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 791489, 1582978, 3165956, 3957445, 7914890, 10289357, 15829780, 20578714, 41157428, 51446785, 102893570, 205787140]

約数ペア:

[(1, 205787140), (2, 102893570), (4, 51446785), (5, 41157428), (10, 20578714), (13, 15829780), (20, 10289357), (26, 7914890), (52, 3957445), (65, 3165956), (130, 1582978), (260, 791489)]