278734148

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 144

約数和(自身を含む): 661382400

約数和(自身を除く): 382648252

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 49, 73, 77, 92, 98, 121, 146, 154, 161, 196, 242, 253, 292, 308, 322, 343, 484, 506, 511, 539, 644, 686, 803, 847, 1012, 1022, 1078, 1127, 1372, 1606, 1679, 1694, 1771, 2044, 2156, 2254, 2783, 3212, 3358, 3388, 3542, 3577, 3773, 4508, 5566, 5621, 5929, 6716, 7084, 7154, 7546, 7889, 8833, 11132, 11242, 11753, 11858, 12397, 14308, 15092, 15778, 17666, 18469, 19481, 22484, 23506, 23716, 24794, 25039, 31556, 35332, 36938, 38962, 39347, 41503, 47012, 49588, 50078, 61831, 73876, 77924, 78694, 82271, 83006, 86779, 100156, 123662, 129283, 136367, 157388, 164542, 166012, 173558, 203159, 247324, 258566, 272734, 275429, 329084, 347116, 406318, 432817, 517132, 545468, 550858, 575897, 812636, 865634, 904981, 954569, 1101716, 1151794, 1422113, 1731268, 1809962, 1909138, 2303588, 2844226, 3029719, 3619924, 3818276, 5688452, 6059438, 6334867, 9954791, 12118876, 12669734, 19909582, 25339468, 39819164, 69683537, 139367074, 278734148]

約数ペア:

[(1, 278734148), (2, 139367074), (4, 69683537), (7, 39819164), (11, 25339468), (14, 19909582), (22, 12669734), (23, 12118876), (28, 9954791), (44, 6334867), (46, 6059438), (49, 5688452), (73, 3818276), (77, 3619924), (92, 3029719), (98, 2844226), (121, 2303588), (146, 1909138), (154, 1809962), (161, 1731268), (196, 1422113), (242, 1151794), (253, 1101716), (292, 954569), (308, 904981), (322, 865634), (343, 812636), (484, 575897), (506, 550858), (511, 545468), (539, 517132), (644, 432817), (686, 406318), (803, 347116), (847, 329084), (1012, 275429), (1022, 272734), (1078, 258566), (1127, 247324), (1372, 203159), (1606, 173558), (1679, 166012), (1694, 164542), (1771, 157388), (2044, 136367), (2156, 129283), (2254, 123662), (2783, 100156), (3212, 86779), (3358, 83006), (3388, 82271), (3542, 78694), (3577, 77924), (3773, 73876), (4508, 61831), (5566, 50078), (5621, 49588), (5929, 47012), (6716, 41503), (7084, 39347), (7154, 38962), (7546, 36938), (7889, 35332), (8833, 31556), (11132, 25039), (11242, 24794), (11753, 23716), (11858, 23506), (12397, 22484), (14308, 19481), (15092, 18469), (15778, 17666)]