20860378

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{523}}^1$

素因数の和:587

約数の個数: 48

約数和(自身を含む): 40859424

約数和(自身を除く): 19999046

約数列:

[1, 2, 7, 11, 14, 22, 37, 49, 74, 77, 98, 154, 259, 407, 518, 523, 539, 814, 1046, 1078, 1813, 2849, 3626, 3661, 5698, 5753, 7322, 11506, 19351, 19943, 25627, 38702, 39886, 40271, 51254, 80542, 135457, 212861, 270914, 281897, 425722, 563794, 948199, 1490027, 1896398, 2980054, 10430189, 20860378]

約数ペア:

[(1, 20860378), (2, 10430189), (7, 2980054), (11, 1896398), (14, 1490027), (22, 948199), (37, 563794), (49, 425722), (74, 281897), (77, 270914), (98, 212861), (154, 135457), (259, 80542), (407, 51254), (518, 40271), (523, 39886), (539, 38702), (814, 25627), (1046, 19943), (1078, 19351), (1813, 11506), (2849, 7322), (3626, 5753), (3661, 5698)]