320840280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{891223}}^1$

素因数の和:891240

約数の個数: 48

約数和(自身を含む): 1042732080

約数和(自身を除く): 721891800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 891223, 1782446, 2673669, 3564892, 4456115, 5347338, 7129784, 8021007, 8912230, 10694676, 13368345, 16042014, 17824460, 21389352, 26736690, 32084028, 35648920, 40105035, 53473380, 64168056, 80210070, 106946760, 160420140, 320840280]

約数ペア:

[(1, 320840280), (2, 160420140), (3, 106946760), (4, 80210070), (5, 64168056), (6, 53473380), (8, 40105035), (9, 35648920), (10, 32084028), (12, 26736690), (15, 21389352), (18, 17824460), (20, 16042014), (24, 13368345), (30, 10694676), (36, 8912230), (40, 8021007), (45, 7129784), (60, 5347338), (72, 4456115), (90, 3564892), (120, 2673669), (180, 1782446), (360, 891223)]