8687720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5051}}^1$

素因数の和:5105

約数の個数: 32

約数和(自身を含む): 20005920

約数和(自身を除く): 11318200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5051, 10102, 20204, 25255, 40408, 50510, 101020, 202040, 217193, 434386, 868772, 1085965, 1737544, 2171930, 4343860, 8687720]

約数ペア:

[(1, 8687720), (2, 4343860), (4, 2171930), (5, 1737544), (8, 1085965), (10, 868772), (20, 434386), (40, 217193), (43, 202040), (86, 101020), (172, 50510), (215, 40408), (344, 25255), (430, 20204), (860, 10102), (1720, 5051)]