81512648

素因数分解:

$2^3\times 7^1\times {\mathrm{499}}^1\times {\mathrm{2917}}^1$

素因数の和:3429

約数の個数: 32

約数和(自身を含む): 175080000

約数和(自身を除く): 93567352

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 499, 998, 1996, 2917, 3493, 3992, 5834, 6986, 11668, 13972, 20419, 23336, 27944, 40838, 81676, 163352, 1455583, 2911166, 5822332, 10189081, 11644664, 20378162, 40756324, 81512648]

約数ペア:

[(1, 81512648), (2, 40756324), (4, 20378162), (7, 11644664), (8, 10189081), (14, 5822332), (28, 2911166), (56, 1455583), (499, 163352), (998, 81676), (1996, 40838), (2917, 27944), (3493, 23336), (3992, 20419), (5834, 13972), (6986, 11668)]