20745584790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1\times {\mathrm{3863}}^1$

素因数の和:4226

約数の個数: 128

約数和(自身を含む): 57689210880

約数和(自身を除く): 36943626090

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 107, 210, 214, 239, 321, 478, 535, 642, 717, 749, 1070, 1195, 1434, 1498, 1605, 1673, 2247, 2390, 3210, 3346, 3585, 3745, 3863, 4494, 5019, 7170, 7490, 7726, 8365, 10038, 11235, 11589, 16730, 19315, 22470, 23178, 25095, 25573, 27041, 38630, 50190, 51146, 54082, 57945, 76719, 81123, 115890, 127865, 135205, 153438, 162246, 179011, 255730, 270410, 358022, 383595, 405615, 413341, 537033, 767190, 811230, 826682, 895055, 923257, 1074066, 1240023, 1790110, 1846514, 2066705, 2480046, 2685165, 2769771, 2893387, 4133410, 4616285, 5370330, 5539542, 5786774, 6200115, 6462799, 8680161, 9232570, 12400230, 12925598, 13848855, 14466935, 17360322, 19388397, 27697710, 28933870, 32313995, 38776794, 43400805, 64627990, 86801610, 96941985, 98788499, 193883970, 197576998, 296365497, 493942495, 592730994, 691519493, 987884990, 1383038986, 1481827485, 2074558479, 2963654970, 3457597465, 4149116958, 6915194930, 10372792395, 20745584790]

約数ペア:

[(1, 20745584790), (2, 10372792395), (3, 6915194930), (5, 4149116958), (6, 3457597465), (7, 2963654970), (10, 2074558479), (14, 1481827485), (15, 1383038986), (21, 987884990), (30, 691519493), (35, 592730994), (42, 493942495), (70, 296365497), (105, 197576998), (107, 193883970), (210, 98788499), (214, 96941985), (239, 86801610), (321, 64627990), (478, 43400805), (535, 38776794), (642, 32313995), (717, 28933870), (749, 27697710), (1070, 19388397), (1195, 17360322), (1434, 14466935), (1498, 13848855), (1605, 12925598), (1673, 12400230), (2247, 9232570), (2390, 8680161), (3210, 6462799), (3346, 6200115), (3585, 5786774), (3745, 5539542), (3863, 5370330), (4494, 4616285), (5019, 4133410), (7170, 2893387), (7490, 2769771), (7726, 2685165), (8365, 2480046), (10038, 2066705), (11235, 1846514), (11589, 1790110), (16730, 1240023), (19315, 1074066), (22470, 923257), (23178, 895055), (25095, 826682), (25573, 811230), (27041, 767190), (38630, 537033), (50190, 413341), (51146, 405615), (54082, 383595), (57945, 358022), (76719, 270410), (81123, 255730), (115890, 179011), (127865, 162246), (135205, 153438)]