28613920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4159}}^1$

素因数の和:4217

約数の個数: 48

約数和(自身を含む): 69189120

約数和(自身を除く): 40575200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 4159, 6880, 8318, 16636, 20795, 33272, 41590, 66544, 83180, 133088, 166360, 178837, 332720, 357674, 665440, 715348, 894185, 1430696, 1788370, 2861392, 3576740, 5722784, 7153480, 14306960, 28613920]

約数ペア:

[(1, 28613920), (2, 14306960), (4, 7153480), (5, 5722784), (8, 3576740), (10, 2861392), (16, 1788370), (20, 1430696), (32, 894185), (40, 715348), (43, 665440), (80, 357674), (86, 332720), (160, 178837), (172, 166360), (215, 133088), (344, 83180), (430, 66544), (688, 41590), (860, 33272), (1376, 20795), (1720, 16636), (3440, 8318), (4159, 6880)]