263453905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 412917120

約数和(自身を除く): 149463215

約数列:

[1, 5, 11, 13, 19, 41, 43, 55, 65, 95, 121, 143, 205, 209, 215, 247, 451, 473, 533, 559, 605, 715, 779, 817, 1045, 1235, 1573, 1763, 2255, 2299, 2365, 2665, 2717, 2795, 3895, 4085, 4961, 5203, 5863, 6149, 7865, 8569, 8815, 8987, 10127, 10621, 11495, 13585, 19393, 22919, 24805, 26015, 29315, 29887, 30745, 33497, 42845, 44935, 50635, 53105, 64493, 67639, 94259, 96965, 98857, 111397, 114595, 116831, 149435, 167485, 213323, 252109, 322465, 338195, 368467, 435461, 471295, 494285, 556985, 584155, 1066615, 1225367, 1260545, 1285141, 1842335, 2177305, 2773199, 4053137, 4790071, 6126835, 6425705, 13865995, 20265685, 23950355, 52690781, 263453905]

約数ペア:

[(1, 263453905), (5, 52690781), (11, 23950355), (13, 20265685), (19, 13865995), (41, 6425705), (43, 6126835), (55, 4790071), (65, 4053137), (95, 2773199), (121, 2177305), (143, 1842335), (205, 1285141), (209, 1260545), (215, 1225367), (247, 1066615), (451, 584155), (473, 556985), (533, 494285), (559, 471295), (605, 435461), (715, 368467), (779, 338195), (817, 322465), (1045, 252109), (1235, 213323), (1573, 167485), (1763, 149435), (2255, 116831), (2299, 114595), (2365, 111397), (2665, 98857), (2717, 96965), (2795, 94259), (3895, 67639), (4085, 64493), (4961, 53105), (5203, 50635), (5863, 44935), (6149, 42845), (7865, 33497), (8569, 30745), (8815, 29887), (8987, 29315), (10127, 26015), (10621, 24805), (11495, 22919), (13585, 19393)]