28639455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{647}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 49641984

約数和(自身を除く): 21002529

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 227, 647, 681, 1135, 1941, 2951, 3235, 3405, 8411, 8853, 9705, 14755, 25233, 42055, 44265, 126165, 146869, 440607, 734345, 1909297, 2203035, 5727891, 9546485, 28639455]

約数ペア:

[(1, 28639455), (3, 9546485), (5, 5727891), (13, 2203035), (15, 1909297), (39, 734345), (65, 440607), (195, 146869), (227, 126165), (647, 44265), (681, 42055), (1135, 25233), (1941, 14755), (2951, 9705), (3235, 8853), (3405, 8411)]