12281885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 20459520

約数和(自身を除く): 8177635

約数列:

[1, 5, 7, 11, 19, 23, 35, 55, 73, 77, 95, 115, 133, 161, 209, 253, 365, 385, 437, 511, 665, 803, 805, 1045, 1265, 1387, 1463, 1679, 1771, 2185, 2555, 3059, 4015, 4807, 5621, 6935, 7315, 8395, 8855, 9709, 11753, 15257, 15295, 18469, 24035, 28105, 31901, 33649, 48545, 58765, 76285, 92345, 106799, 129283, 159505, 168245, 223307, 350911, 533995, 646415, 1116535, 1754555, 2456377, 12281885]

約数ペア:

[(1, 12281885), (5, 2456377), (7, 1754555), (11, 1116535), (19, 646415), (23, 533995), (35, 350911), (55, 223307), (73, 168245), (77, 159505), (95, 129283), (115, 106799), (133, 92345), (161, 76285), (209, 58765), (253, 48545), (365, 33649), (385, 31901), (437, 28105), (511, 24035), (665, 18469), (803, 15295), (805, 15257), (1045, 11753), (1265, 9709), (1387, 8855), (1463, 8395), (1679, 7315), (1771, 6935), (2185, 5621), (2555, 4807), (3059, 4015)]