20275216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{911}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 22472048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 856, 911, 1391, 1712, 1822, 2782, 3644, 5564, 7288, 11128, 11843, 14576, 22256, 23686, 47372, 94744, 97477, 189488, 194954, 389908, 779816, 1267201, 1559632, 2534402, 5068804, 10137608, 20275216]

約数ペア:

[(1, 20275216), (2, 10137608), (4, 5068804), (8, 2534402), (13, 1559632), (16, 1267201), (26, 779816), (52, 389908), (104, 194954), (107, 189488), (208, 97477), (214, 94744), (428, 47372), (856, 23686), (911, 22256), (1391, 14576), (1712, 11843), (1822, 11128), (2782, 7288), (3644, 5564)]