8727280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^2\times {\mathrm{59}}^1$

素因数の和:158

約数の個数: 60

約数和(自身を含む): 21125880

約数和(自身を除く): 12398600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 59, 80, 86, 118, 172, 215, 236, 295, 344, 430, 472, 590, 688, 860, 944, 1180, 1720, 1849, 2360, 2537, 3440, 3698, 4720, 5074, 7396, 9245, 10148, 12685, 14792, 18490, 20296, 25370, 29584, 36980, 40592, 50740, 73960, 101480, 109091, 147920, 202960, 218182, 436364, 545455, 872728, 1090910, 1745456, 2181820, 4363640, 8727280]

約数ペア:

[(1, 8727280), (2, 4363640), (4, 2181820), (5, 1745456), (8, 1090910), (10, 872728), (16, 545455), (20, 436364), (40, 218182), (43, 202960), (59, 147920), (80, 109091), (86, 101480), (118, 73960), (172, 50740), (215, 40592), (236, 36980), (295, 29584), (344, 25370), (430, 20296), (472, 18490), (590, 14792), (688, 12685), (860, 10148), (944, 9245), (1180, 7396), (1720, 5074), (1849, 4720), (2360, 3698), (2537, 3440)]