20934256

素因数分解:

$2^4\times 7^1\times {\mathrm{409}}^1\times {\mathrm{457}}^1$

素因数の和:881

約数の個数: 40

約数和(自身を含む): 46569440

約数和(自身を除く): 25635184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 409, 457, 818, 914, 1636, 1828, 2863, 3199, 3272, 3656, 5726, 6398, 6544, 7312, 11452, 12796, 22904, 25592, 45808, 51184, 186913, 373826, 747652, 1308391, 1495304, 2616782, 2990608, 5233564, 10467128, 20934256]

約数ペア:

[(1, 20934256), (2, 10467128), (4, 5233564), (7, 2990608), (8, 2616782), (14, 1495304), (16, 1308391), (28, 747652), (56, 373826), (112, 186913), (409, 51184), (457, 45808), (818, 25592), (914, 22904), (1636, 12796), (1828, 11452), (2863, 7312), (3199, 6544), (3272, 6398), (3656, 5726)]