31891090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:607

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 40684910

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 83, 110, 154, 166, 385, 415, 499, 581, 770, 830, 913, 998, 1162, 1826, 2495, 2905, 3493, 4565, 4990, 5489, 5810, 6391, 6986, 9130, 10978, 12782, 17465, 27445, 31955, 34930, 38423, 41417, 54890, 63910, 76846, 82834, 192115, 207085, 289919, 384230, 414170, 455587, 579838, 911174, 1449595, 2277935, 2899190, 3189109, 4555870, 6378218, 15945545, 31891090]

約数ペア:

[(1, 31891090), (2, 15945545), (5, 6378218), (7, 4555870), (10, 3189109), (11, 2899190), (14, 2277935), (22, 1449595), (35, 911174), (55, 579838), (70, 455587), (77, 414170), (83, 384230), (110, 289919), (154, 207085), (166, 192115), (385, 82834), (415, 76846), (499, 63910), (581, 54890), (770, 41417), (830, 38423), (913, 34930), (998, 31955), (1162, 27445), (1826, 17465), (2495, 12782), (2905, 10978), (3493, 9130), (4565, 6986), (4990, 6391), (5489, 5810)]