31461378

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 75893760

約数和(自身を除く): 44432382

約数列:

[1, 2, 3, 6, 13, 19, 23, 26, 38, 39, 46, 57, 69, 71, 78, 114, 138, 142, 169, 213, 247, 299, 338, 426, 437, 494, 507, 598, 741, 874, 897, 923, 1014, 1311, 1349, 1482, 1633, 1794, 1846, 2622, 2698, 2769, 3211, 3266, 3887, 4047, 4899, 5538, 5681, 6422, 7774, 8094, 9633, 9798, 11362, 11661, 11999, 17043, 17537, 19266, 21229, 23322, 23998, 31027, 34086, 35074, 35997, 42458, 52611, 62054, 63687, 71994, 73853, 93081, 105222, 127374, 147706, 186162, 221559, 227981, 275977, 403351, 443118, 455962, 551954, 683943, 806702, 827931, 1210053, 1367886, 1655862, 2420106, 5243563, 10487126, 15730689, 31461378]

約数ペア:

[(1, 31461378), (2, 15730689), (3, 10487126), (6, 5243563), (13, 2420106), (19, 1655862), (23, 1367886), (26, 1210053), (38, 827931), (39, 806702), (46, 683943), (57, 551954), (69, 455962), (71, 443118), (78, 403351), (114, 275977), (138, 227981), (142, 221559), (169, 186162), (213, 147706), (247, 127374), (299, 105222), (338, 93081), (426, 73853), (437, 71994), (494, 63687), (507, 62054), (598, 52611), (741, 42458), (874, 35997), (897, 35074), (923, 34086), (1014, 31027), (1311, 23998), (1349, 23322), (1482, 21229), (1633, 19266), (1794, 17537), (1846, 17043), (2622, 11999), (2698, 11661), (2769, 11362), (3211, 9798), (3266, 9633), (3887, 8094), (4047, 7774), (4899, 6422), (5538, 5681)]