20187410404

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^2\times {\mathrm{89}}^1\times {\mathrm{1607}}^1$

素因数の和:1849

約数の個数: 72

約数和(自身を含む): 41437388160

約数和(自身を除く): 21249977756

約数列:

[1, 2, 4, 7, 14, 28, 71, 89, 142, 178, 284, 356, 497, 623, 994, 1246, 1607, 1988, 2492, 3214, 5041, 6319, 6428, 10082, 11249, 12638, 20164, 22498, 25276, 35287, 44233, 44996, 70574, 88466, 114097, 141148, 143023, 176932, 228194, 286046, 448649, 456388, 572092, 798679, 897298, 1001161, 1597358, 1794596, 2002322, 3140543, 3194716, 4004644, 6281086, 8100887, 10154633, 12562172, 16201774, 20309266, 32403548, 40618532, 56706209, 71082431, 113412418, 142164862, 226824836, 284329724, 720978943, 1441957886, 2883915772, 5046852601, 10093705202, 20187410404]

約数ペア:

[(1, 20187410404), (2, 10093705202), (4, 5046852601), (7, 2883915772), (14, 1441957886), (28, 720978943), (71, 284329724), (89, 226824836), (142, 142164862), (178, 113412418), (284, 71082431), (356, 56706209), (497, 40618532), (623, 32403548), (994, 20309266), (1246, 16201774), (1607, 12562172), (1988, 10154633), (2492, 8100887), (3214, 6281086), (5041, 4004644), (6319, 3194716), (6428, 3140543), (10082, 2002322), (11249, 1794596), (12638, 1597358), (20164, 1001161), (22498, 897298), (25276, 798679), (35287, 572092), (44233, 456388), (44996, 448649), (70574, 286046), (88466, 228194), (114097, 176932), (141148, 143023)]