81175408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 177176160

約数和(自身を除く): 96000752

約数列:

[1, 2, 4, 8, 16, 17, 29, 34, 41, 58, 68, 82, 116, 136, 164, 232, 251, 272, 328, 464, 493, 502, 656, 697, 986, 1004, 1189, 1394, 1972, 2008, 2378, 2788, 3944, 4016, 4267, 4756, 5576, 7279, 7888, 8534, 9512, 10291, 11152, 14558, 17068, 19024, 20213, 20582, 29116, 34136, 40426, 41164, 58232, 68272, 80852, 82328, 116464, 123743, 161704, 164656, 174947, 247486, 298439, 323408, 349894, 494972, 596878, 699788, 989944, 1193756, 1399576, 1979888, 2387512, 2799152, 4775024, 5073463, 10146926, 20293852, 40587704, 81175408]

約数ペア:

[(1, 81175408), (2, 40587704), (4, 20293852), (8, 10146926), (16, 5073463), (17, 4775024), (29, 2799152), (34, 2387512), (41, 1979888), (58, 1399576), (68, 1193756), (82, 989944), (116, 699788), (136, 596878), (164, 494972), (232, 349894), (251, 323408), (272, 298439), (328, 247486), (464, 174947), (493, 164656), (502, 161704), (656, 123743), (697, 116464), (986, 82328), (1004, 80852), (1189, 68272), (1394, 58232), (1972, 41164), (2008, 40426), (2378, 34136), (2788, 29116), (3944, 20582), (4016, 20213), (4267, 19024), (4756, 17068), (5576, 14558), (7279, 11152), (7888, 10291), (8534, 9512)]