20580984

素因数分解:

$2^3\times 3^2\times {\mathrm{197}}^1\times {\mathrm{1451}}^1$

素因数の和:1660

約数の個数: 48

約数和(自身を含む): 56061720

約数和(自身を除く): 35480736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 197, 394, 591, 788, 1182, 1451, 1576, 1773, 2364, 2902, 3546, 4353, 4728, 5804, 7092, 8706, 11608, 13059, 14184, 17412, 26118, 34824, 52236, 104472, 285847, 571694, 857541, 1143388, 1715082, 2286776, 2572623, 3430164, 5145246, 6860328, 10290492, 20580984]

約数ペア:

[(1, 20580984), (2, 10290492), (3, 6860328), (4, 5145246), (6, 3430164), (8, 2572623), (9, 2286776), (12, 1715082), (18, 1143388), (24, 857541), (36, 571694), (72, 285847), (197, 104472), (394, 52236), (591, 34824), (788, 26118), (1182, 17412), (1451, 14184), (1576, 13059), (1773, 11608), (2364, 8706), (2902, 7092), (3546, 5804), (4353, 4728)]