256439352

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 733824000

約数和(自身を除く): 477384648

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 181, 228, 239, 247, 312, 362, 456, 478, 494, 543, 717, 724, 741, 956, 988, 1086, 1434, 1448, 1482, 1912, 1976, 2172, 2353, 2868, 2964, 3107, 3439, 4344, 4541, 4706, 5736, 5928, 6214, 6878, 7059, 9082, 9321, 9412, 10317, 12428, 13623, 13756, 14118, 18164, 18642, 18824, 20634, 24856, 27246, 27512, 28236, 36328, 37284, 41268, 43259, 44707, 54492, 56472, 59033, 74568, 82536, 86518, 89414, 108984, 118066, 129777, 134121, 173036, 177099, 178828, 236132, 259554, 268242, 346072, 354198, 357656, 472264, 519108, 536484, 562367, 708396, 821921, 1038216, 1072968, 1124734, 1416792, 1643842, 1687101, 2249468, 2465763, 3287684, 3374202, 4498936, 4931526, 6575368, 6748404, 9863052, 10684973, 13496808, 19726104, 21369946, 32054919, 42739892, 64109838, 85479784, 128219676, 256439352]

約数ペア:

[(1, 256439352), (2, 128219676), (3, 85479784), (4, 64109838), (6, 42739892), (8, 32054919), (12, 21369946), (13, 19726104), (19, 13496808), (24, 10684973), (26, 9863052), (38, 6748404), (39, 6575368), (52, 4931526), (57, 4498936), (76, 3374202), (78, 3287684), (104, 2465763), (114, 2249468), (152, 1687101), (156, 1643842), (181, 1416792), (228, 1124734), (239, 1072968), (247, 1038216), (312, 821921), (362, 708396), (456, 562367), (478, 536484), (494, 519108), (543, 472264), (717, 357656), (724, 354198), (741, 346072), (956, 268242), (988, 259554), (1086, 236132), (1434, 178828), (1448, 177099), (1482, 173036), (1912, 134121), (1976, 129777), (2172, 118066), (2353, 108984), (2868, 89414), (2964, 86518), (3107, 82536), (3439, 74568), (4344, 59033), (4541, 56472), (4706, 54492), (5736, 44707), (5928, 43259), (6214, 41268), (6878, 37284), (7059, 36328), (9082, 28236), (9321, 27512), (9412, 27246), (10317, 24856), (12428, 20634), (13623, 18824), (13756, 18642), (14118, 18164)]