20806484272

素因数分解:

$2^4\times 7^3\times {\mathrm{31}}^1\times {\mathrm{122299}}^1$

素因数の和:122359

約数の個数: 80

約数和(自身を含む): 48528640000

約数和(自身を除く): 27722155728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 98, 112, 124, 196, 217, 248, 343, 392, 434, 496, 686, 784, 868, 1372, 1519, 1736, 2744, 3038, 3472, 5488, 6076, 10633, 12152, 21266, 24304, 42532, 85064, 122299, 170128, 244598, 489196, 856093, 978392, 1712186, 1956784, 3424372, 3791269, 5992651, 6848744, 7582538, 11985302, 13697488, 15165076, 23970604, 26538883, 30330152, 41948557, 47941208, 53077766, 60660304, 83897114, 95882416, 106155532, 167794228, 185772181, 212311064, 335588456, 371544362, 424622128, 671176912, 743088724, 1300405267, 1486177448, 2600810534, 2972354896, 5201621068, 10403242136, 20806484272]

約数ペア:

[(1, 20806484272), (2, 10403242136), (4, 5201621068), (7, 2972354896), (8, 2600810534), (14, 1486177448), (16, 1300405267), (28, 743088724), (31, 671176912), (49, 424622128), (56, 371544362), (62, 335588456), (98, 212311064), (112, 185772181), (124, 167794228), (196, 106155532), (217, 95882416), (248, 83897114), (343, 60660304), (392, 53077766), (434, 47941208), (496, 41948557), (686, 30330152), (784, 26538883), (868, 23970604), (1372, 15165076), (1519, 13697488), (1736, 11985302), (2744, 7582538), (3038, 6848744), (3472, 5992651), (5488, 3791269), (6076, 3424372), (10633, 1956784), (12152, 1712186), (21266, 978392), (24304, 856093), (42532, 489196), (85064, 244598), (122299, 170128)]