28066960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 68745600

約数和(自身を除く): 40678640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 199, 205, 215, 328, 344, 398, 410, 430, 656, 688, 796, 820, 860, 995, 1592, 1640, 1720, 1763, 1990, 3184, 3280, 3440, 3526, 3980, 7052, 7960, 8159, 8557, 8815, 14104, 15920, 16318, 17114, 17630, 28208, 32636, 34228, 35260, 40795, 42785, 65272, 68456, 70520, 81590, 85570, 130544, 136912, 141040, 163180, 171140, 326360, 342280, 350837, 652720, 684560, 701674, 1403348, 1754185, 2806696, 3508370, 5613392, 7016740, 14033480, 28066960]

約数ペア:

[(1, 28066960), (2, 14033480), (4, 7016740), (5, 5613392), (8, 3508370), (10, 2806696), (16, 1754185), (20, 1403348), (40, 701674), (41, 684560), (43, 652720), (80, 350837), (82, 342280), (86, 326360), (164, 171140), (172, 163180), (199, 141040), (205, 136912), (215, 130544), (328, 85570), (344, 81590), (398, 70520), (410, 68456), (430, 65272), (656, 42785), (688, 40795), (796, 35260), (820, 34228), (860, 32636), (995, 28208), (1592, 17630), (1640, 17114), (1720, 16318), (1763, 15920), (1990, 14104), (3184, 8815), (3280, 8557), (3440, 8159), (3526, 7960), (3980, 7052)]