248961520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{449}}^1$

素因数の和:730

約数の個数: 80

約数和(自身を含む): 602640000

約数和(自身を除く): 353678480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 239, 290, 449, 464, 478, 580, 898, 956, 1160, 1195, 1796, 1912, 2245, 2320, 2390, 3592, 3824, 4490, 4780, 6931, 7184, 8980, 9560, 13021, 13862, 17960, 19120, 26042, 27724, 34655, 35920, 52084, 55448, 65105, 69310, 104168, 107311, 110896, 130210, 138620, 208336, 214622, 260420, 277240, 429244, 520840, 536555, 554480, 858488, 1041680, 1073110, 1716976, 2146220, 3112019, 4292440, 6224038, 8584880, 12448076, 15560095, 24896152, 31120190, 49792304, 62240380, 124480760, 248961520]

約数ペア:

[(1, 248961520), (2, 124480760), (4, 62240380), (5, 49792304), (8, 31120190), (10, 24896152), (16, 15560095), (20, 12448076), (29, 8584880), (40, 6224038), (58, 4292440), (80, 3112019), (116, 2146220), (145, 1716976), (232, 1073110), (239, 1041680), (290, 858488), (449, 554480), (464, 536555), (478, 520840), (580, 429244), (898, 277240), (956, 260420), (1160, 214622), (1195, 208336), (1796, 138620), (1912, 130210), (2245, 110896), (2320, 107311), (2390, 104168), (3592, 69310), (3824, 65105), (4490, 55448), (4780, 52084), (6931, 35920), (7184, 34655), (8980, 27724), (9560, 26042), (13021, 19120), (13862, 17960)]