20399340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26153}}^1$

素因数の和:26178

約数の個数: 48

約数和(自身を含む): 61514208

約数和(自身を除く): 41114868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26153, 52306, 78459, 104612, 130765, 156918, 261530, 313836, 339989, 392295, 523060, 679978, 784590, 1019967, 1359956, 1569180, 1699945, 2039934, 3399890, 4079868, 5099835, 6799780, 10199670, 20399340]

約数ペア:

[(1, 20399340), (2, 10199670), (3, 6799780), (4, 5099835), (5, 4079868), (6, 3399890), (10, 2039934), (12, 1699945), (13, 1569180), (15, 1359956), (20, 1019967), (26, 784590), (30, 679978), (39, 523060), (52, 392295), (60, 339989), (65, 313836), (78, 261530), (130, 156918), (156, 130765), (195, 104612), (260, 78459), (390, 52306), (780, 26153)]