28080312

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{90001}}^1$

素因数の和:90023

約数の個数: 32

約数和(自身を含む): 75601680

約数和(自身を除く): 47521368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 90001, 180002, 270003, 360004, 540006, 720008, 1080012, 1170013, 2160024, 2340026, 3510039, 4680052, 7020078, 9360104, 14040156, 28080312]

約数ペア:

[(1, 28080312), (2, 14040156), (3, 9360104), (4, 7020078), (6, 4680052), (8, 3510039), (12, 2340026), (13, 2160024), (24, 1170013), (26, 1080012), (39, 720008), (52, 540006), (78, 360004), (104, 270003), (156, 180002), (312, 90001)]