20368504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1409}}^1$

素因数の和:1567

約数の個数: 32

約数和(自身を含む): 41454000

約数和(自身を除く): 21085496

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1409, 1807, 2818, 3614, 5636, 7228, 11272, 14456, 18317, 36634, 73268, 146536, 195851, 391702, 783404, 1566808, 2546063, 5092126, 10184252, 20368504]

約数ペア:

[(1, 20368504), (2, 10184252), (4, 5092126), (8, 2546063), (13, 1566808), (26, 783404), (52, 391702), (104, 195851), (139, 146536), (278, 73268), (556, 36634), (1112, 18317), (1409, 14456), (1807, 11272), (2818, 7228), (3614, 5636)]