256457544

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2141}}^1$

素因数の和:2211

約数の個数: 128

約数和(自身を含む): 789626880

約数和(自身を除く): 533169336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 31, 42, 46, 56, 62, 69, 84, 92, 93, 124, 138, 161, 168, 184, 186, 217, 248, 276, 322, 372, 434, 483, 552, 644, 651, 713, 744, 868, 966, 1288, 1302, 1426, 1736, 1932, 2139, 2141, 2604, 2852, 3864, 4278, 4282, 4991, 5208, 5704, 6423, 8556, 8564, 9982, 12846, 14973, 14987, 17112, 17128, 19964, 25692, 29946, 29974, 39928, 44961, 49243, 51384, 59892, 59948, 66371, 89922, 98486, 119784, 119896, 132742, 147729, 179844, 196972, 199113, 265484, 295458, 344701, 359688, 393944, 398226, 464597, 530968, 590916, 689402, 796452, 929194, 1034103, 1181832, 1378804, 1393791, 1526533, 1592904, 1858388, 2068206, 2757608, 2787582, 3053066, 3716776, 4136412, 4579599, 5575164, 6106132, 8272824, 9159198, 10685731, 11150328, 12212264, 18318396, 21371462, 32057193, 36636792, 42742924, 64114386, 85485848, 128228772, 256457544]

約数ペア:

[(1, 256457544), (2, 128228772), (3, 85485848), (4, 64114386), (6, 42742924), (7, 36636792), (8, 32057193), (12, 21371462), (14, 18318396), (21, 12212264), (23, 11150328), (24, 10685731), (28, 9159198), (31, 8272824), (42, 6106132), (46, 5575164), (56, 4579599), (62, 4136412), (69, 3716776), (84, 3053066), (92, 2787582), (93, 2757608), (124, 2068206), (138, 1858388), (161, 1592904), (168, 1526533), (184, 1393791), (186, 1378804), (217, 1181832), (248, 1034103), (276, 929194), (322, 796452), (372, 689402), (434, 590916), (483, 530968), (552, 464597), (644, 398226), (651, 393944), (713, 359688), (744, 344701), (868, 295458), (966, 265484), (1288, 199113), (1302, 196972), (1426, 179844), (1736, 147729), (1932, 132742), (2139, 119896), (2141, 119784), (2604, 98486), (2852, 89922), (3864, 66371), (4278, 59948), (4282, 59892), (4991, 51384), (5208, 49243), (5704, 44961), (6423, 39928), (8556, 29974), (8564, 29946), (9982, 25692), (12846, 19964), (14973, 17128), (14987, 17112)]