81856864

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 180956160

約数和(自身を除く): 99099296

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 43, 62, 76, 86, 101, 124, 152, 172, 202, 248, 304, 344, 404, 496, 589, 608, 688, 808, 817, 992, 1178, 1333, 1376, 1616, 1634, 1919, 2356, 2666, 3131, 3232, 3268, 3838, 4343, 4712, 5332, 6262, 6536, 7676, 8686, 9424, 10664, 12524, 13072, 15352, 17372, 18848, 21328, 25048, 25327, 26144, 30704, 34744, 42656, 50096, 50654, 59489, 61408, 69488, 82517, 100192, 101308, 118978, 134633, 138976, 165034, 202616, 237956, 269266, 330068, 405232, 475912, 538532, 660136, 810464, 951824, 1077064, 1320272, 1903648, 2154128, 2558027, 2640544, 4308256, 5116054, 10232108, 20464216, 40928432, 81856864]

約数ペア:

[(1, 81856864), (2, 40928432), (4, 20464216), (8, 10232108), (16, 5116054), (19, 4308256), (31, 2640544), (32, 2558027), (38, 2154128), (43, 1903648), (62, 1320272), (76, 1077064), (86, 951824), (101, 810464), (124, 660136), (152, 538532), (172, 475912), (202, 405232), (248, 330068), (304, 269266), (344, 237956), (404, 202616), (496, 165034), (589, 138976), (608, 134633), (688, 118978), (808, 101308), (817, 100192), (992, 82517), (1178, 69488), (1333, 61408), (1376, 59489), (1616, 50654), (1634, 50096), (1919, 42656), (2356, 34744), (2666, 30704), (3131, 26144), (3232, 25327), (3268, 25048), (3838, 21328), (4343, 18848), (4712, 17372), (5332, 15352), (6262, 13072), (6536, 12524), (7676, 10664), (8686, 9424)]