81038724

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1439}}^1$

素因数の和:1497

約数の個数: 72

約数和(自身を含む): 215066880

約数和(自身を除く): 134028156

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 361, 494, 722, 741, 988, 1083, 1439, 1444, 1482, 2166, 2878, 2964, 4317, 4332, 4693, 5756, 8634, 9386, 14079, 17268, 18707, 18772, 27341, 28158, 37414, 54682, 56121, 56316, 74828, 82023, 109364, 112242, 164046, 224484, 328092, 355433, 519479, 710866, 1038958, 1066299, 1421732, 1558437, 2077916, 2132598, 3116874, 4265196, 6233748, 6753227, 13506454, 20259681, 27012908, 40519362, 81038724]

約数ペア:

[(1, 81038724), (2, 40519362), (3, 27012908), (4, 20259681), (6, 13506454), (12, 6753227), (13, 6233748), (19, 4265196), (26, 3116874), (38, 2132598), (39, 2077916), (52, 1558437), (57, 1421732), (76, 1066299), (78, 1038958), (114, 710866), (156, 519479), (228, 355433), (247, 328092), (361, 224484), (494, 164046), (722, 112242), (741, 109364), (988, 82023), (1083, 74828), (1439, 56316), (1444, 56121), (1482, 54682), (2166, 37414), (2878, 28158), (2964, 27341), (4317, 18772), (4332, 18707), (4693, 17268), (5756, 14079), (8634, 9386)]