20440882

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21031118

約数列:

[1, 2, 7, 11, 14, 22, 23, 29, 46, 58, 77, 154, 161, 199, 203, 253, 319, 322, 398, 406, 506, 638, 667, 1334, 1393, 1771, 2189, 2233, 2786, 3542, 4378, 4466, 4577, 4669, 5771, 7337, 9154, 9338, 11542, 14674, 15323, 30646, 32039, 40397, 50347, 51359, 63481, 64078, 80794, 100694, 102718, 126962, 132733, 265466, 352429, 444367, 704858, 888734, 929131, 1460063, 1858262, 2920126, 10220441, 20440882]

約数ペア:

[(1, 20440882), (2, 10220441), (7, 2920126), (11, 1858262), (14, 1460063), (22, 929131), (23, 888734), (29, 704858), (46, 444367), (58, 352429), (77, 265466), (154, 132733), (161, 126962), (199, 102718), (203, 100694), (253, 80794), (319, 64078), (322, 63481), (398, 51359), (406, 50347), (506, 40397), (638, 32039), (667, 30646), (1334, 15323), (1393, 14674), (1771, 11542), (2189, 9338), (2233, 9154), (2786, 7337), (3542, 5771), (4378, 4669), (4466, 4577)]