81874192

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 178113600

約数和(自身を除く): 96239408

約数列:

[1, 2, 4, 8, 16, 19, 29, 37, 38, 58, 74, 76, 116, 148, 152, 232, 251, 296, 304, 464, 502, 551, 592, 703, 1004, 1073, 1102, 1406, 2008, 2146, 2204, 2812, 4016, 4292, 4408, 4769, 5624, 7279, 8584, 8816, 9287, 9538, 11248, 14558, 17168, 18574, 19076, 20387, 29116, 37148, 38152, 40774, 58232, 74296, 76304, 81548, 116464, 138301, 148592, 163096, 176453, 269323, 276602, 326192, 352906, 538646, 553204, 705812, 1077292, 1106408, 1411624, 2154584, 2212816, 2823248, 4309168, 5117137, 10234274, 20468548, 40937096, 81874192]

約数ペア:

[(1, 81874192), (2, 40937096), (4, 20468548), (8, 10234274), (16, 5117137), (19, 4309168), (29, 2823248), (37, 2212816), (38, 2154584), (58, 1411624), (74, 1106408), (76, 1077292), (116, 705812), (148, 553204), (152, 538646), (232, 352906), (251, 326192), (296, 276602), (304, 269323), (464, 176453), (502, 163096), (551, 148592), (592, 138301), (703, 116464), (1004, 81548), (1073, 76304), (1102, 74296), (1406, 58232), (2008, 40774), (2146, 38152), (2204, 37148), (2812, 29116), (4016, 20387), (4292, 19076), (4408, 18574), (4769, 17168), (5624, 14558), (7279, 11248), (8584, 9538), (8816, 9287)]