64312720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1459}}^1$

素因数の和:1520

約数の個数: 80

約数和(自身を含む): 162936000

約数和(自身を除く): 98623280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 760, 1102, 1160, 1459, 1520, 2204, 2320, 2755, 2918, 4408, 5510, 5836, 7295, 8816, 11020, 11672, 14590, 22040, 23344, 27721, 29180, 42311, 44080, 55442, 58360, 84622, 110884, 116720, 138605, 169244, 211555, 221768, 277210, 338488, 423110, 443536, 554420, 676976, 803909, 846220, 1108840, 1607818, 1692440, 2217680, 3215636, 3384880, 4019545, 6431272, 8039090, 12862544, 16078180, 32156360, 64312720]

約数ペア:

[(1, 64312720), (2, 32156360), (4, 16078180), (5, 12862544), (8, 8039090), (10, 6431272), (16, 4019545), (19, 3384880), (20, 3215636), (29, 2217680), (38, 1692440), (40, 1607818), (58, 1108840), (76, 846220), (80, 803909), (95, 676976), (116, 554420), (145, 443536), (152, 423110), (190, 338488), (232, 277210), (290, 221768), (304, 211555), (380, 169244), (464, 138605), (551, 116720), (580, 110884), (760, 84622), (1102, 58360), (1160, 55442), (1459, 44080), (1520, 42311), (2204, 29180), (2320, 27721), (2755, 23344), (2918, 22040), (4408, 14590), (5510, 11672), (5836, 11020), (7295, 8816)]