28716828

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{947}}^1$

素因数の和:999

約数の個数: 72

約数和(自身を含む): 80906112

約数和(自身を除く): 52189284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 361, 399, 532, 722, 798, 947, 1083, 1444, 1596, 1894, 2166, 2527, 2841, 3788, 4332, 5054, 5682, 6629, 7581, 10108, 11364, 13258, 15162, 17993, 19887, 26516, 30324, 35986, 39774, 53979, 71972, 79548, 107958, 125951, 215916, 251902, 341867, 377853, 503804, 683734, 755706, 1025601, 1367468, 1511412, 2051202, 2393069, 4102404, 4786138, 7179207, 9572276, 14358414, 28716828]

約数ペア:

[(1, 28716828), (2, 14358414), (3, 9572276), (4, 7179207), (6, 4786138), (7, 4102404), (12, 2393069), (14, 2051202), (19, 1511412), (21, 1367468), (28, 1025601), (38, 755706), (42, 683734), (57, 503804), (76, 377853), (84, 341867), (114, 251902), (133, 215916), (228, 125951), (266, 107958), (361, 79548), (399, 71972), (532, 53979), (722, 39774), (798, 35986), (947, 30324), (1083, 26516), (1444, 19887), (1596, 17993), (1894, 15162), (2166, 13258), (2527, 11364), (2841, 10108), (3788, 7581), (4332, 6629), (5054, 5682)]