29888870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 61585920

約数和(自身を除く): 31697050

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 71, 86, 89, 110, 142, 178, 215, 355, 430, 445, 473, 710, 781, 890, 946, 979, 1562, 1958, 2365, 3053, 3827, 3905, 4730, 4895, 6106, 6319, 7654, 7810, 9790, 12638, 15265, 19135, 30530, 31595, 33583, 38270, 42097, 63190, 67166, 69509, 84194, 139018, 167915, 210485, 271717, 335830, 347545, 420970, 543434, 695090, 1358585, 2717170, 2988887, 5977774, 14944435, 29888870]

約数ペア:

[(1, 29888870), (2, 14944435), (5, 5977774), (10, 2988887), (11, 2717170), (22, 1358585), (43, 695090), (55, 543434), (71, 420970), (86, 347545), (89, 335830), (110, 271717), (142, 210485), (178, 167915), (215, 139018), (355, 84194), (430, 69509), (445, 67166), (473, 63190), (710, 42097), (781, 38270), (890, 33583), (946, 31595), (979, 30530), (1562, 19135), (1958, 15265), (2365, 12638), (3053, 9790), (3827, 7810), (3905, 7654), (4730, 6319), (4895, 6106)]