12919905

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:132

約数の個数: 80

約数和(自身を含む): 25787520

約数和(自身を除く): 12867615

約数列:

[1, 3, 5, 9, 15, 19, 23, 27, 45, 57, 69, 73, 81, 95, 115, 135, 171, 207, 219, 285, 345, 365, 405, 437, 513, 621, 657, 855, 1035, 1095, 1311, 1387, 1539, 1679, 1863, 1971, 2185, 2565, 3105, 3285, 3933, 4161, 5037, 5913, 6555, 6935, 7695, 8395, 9315, 9855, 11799, 12483, 15111, 19665, 20805, 25185, 29565, 31901, 35397, 37449, 45333, 58995, 62415, 75555, 95703, 112347, 135999, 159505, 176985, 187245, 226665, 287109, 478515, 561735, 679995, 861327, 1435545, 2583981, 4306635, 12919905]

約数ペア:

[(1, 12919905), (3, 4306635), (5, 2583981), (9, 1435545), (15, 861327), (19, 679995), (23, 561735), (27, 478515), (45, 287109), (57, 226665), (69, 187245), (73, 176985), (81, 159505), (95, 135999), (115, 112347), (135, 95703), (171, 75555), (207, 62415), (219, 58995), (285, 45333), (345, 37449), (365, 35397), (405, 31901), (437, 29565), (513, 25185), (621, 20805), (657, 19665), (855, 15111), (1035, 12483), (1095, 11799), (1311, 9855), (1387, 9315), (1539, 8395), (1679, 7695), (1863, 6935), (1971, 6555), (2185, 5913), (2565, 5037), (3105, 4161), (3285, 3933)]