49778680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1279}}^1$

素因数の和:1436

約数の個数: 64

約数和(自身を含む): 129024000

約数和(自身を除く): 79245320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1279, 1390, 1946, 2558, 2780, 3892, 4865, 5116, 5560, 6395, 7784, 8953, 9730, 10232, 12790, 17906, 19460, 25580, 35812, 38920, 44765, 51160, 71624, 89530, 177781, 179060, 355562, 358120, 711124, 888905, 1244467, 1422248, 1777810, 2488934, 3555620, 4977868, 6222335, 7111240, 9955736, 12444670, 24889340, 49778680]

約数ペア:

[(1, 49778680), (2, 24889340), (4, 12444670), (5, 9955736), (7, 7111240), (8, 6222335), (10, 4977868), (14, 3555620), (20, 2488934), (28, 1777810), (35, 1422248), (40, 1244467), (56, 888905), (70, 711124), (139, 358120), (140, 355562), (278, 179060), (280, 177781), (556, 89530), (695, 71624), (973, 51160), (1112, 44765), (1279, 38920), (1390, 35812), (1946, 25580), (2558, 19460), (2780, 17906), (3892, 12790), (4865, 10232), (5116, 9730), (5560, 8953), (6395, 7784)]