20278808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4903}}^1$

素因数の和:4967

約数の個数: 32

約数和(自身を含む): 42370560

約数和(自身を除く): 22091752

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 4903, 9806, 19612, 39224, 53933, 107866, 215732, 230441, 431464, 460882, 921764, 1843528, 2534851, 5069702, 10139404, 20278808]

約数ペア:

[(1, 20278808), (2, 10139404), (4, 5069702), (8, 2534851), (11, 1843528), (22, 921764), (44, 460882), (47, 431464), (88, 230441), (94, 215732), (188, 107866), (376, 53933), (517, 39224), (1034, 19612), (2068, 9806), (4136, 4903)]