28388568

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{90989}}^1$

素因数の和:91011

約数の個数: 32

約数和(自身を含む): 76431600

約数和(自身を除く): 48043032

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 90989, 181978, 272967, 363956, 545934, 727912, 1091868, 1182857, 2183736, 2365714, 3548571, 4731428, 7097142, 9462856, 14194284, 28388568]

約数ペア:

[(1, 28388568), (2, 14194284), (3, 9462856), (4, 7097142), (6, 4731428), (8, 3548571), (12, 2365714), (13, 2183736), (24, 1182857), (26, 1091868), (39, 727912), (52, 545934), (78, 363956), (104, 272967), (156, 181978), (312, 90989)]