256594688

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:234

約数の個数: 108

約数和(自身を含む): 608907600

約数和(自身を除く): 352312912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 149, 217, 224, 248, 256, 298, 434, 448, 496, 596, 868, 896, 961, 992, 1043, 1192, 1736, 1792, 1922, 1984, 2086, 2384, 3472, 3844, 3968, 4172, 4619, 4768, 6727, 6944, 7688, 7936, 8344, 9238, 9536, 13454, 13888, 15376, 16688, 18476, 19072, 26908, 27776, 30752, 32333, 33376, 36952, 38144, 53816, 55552, 61504, 64666, 66752, 73904, 107632, 123008, 129332, 133504, 143189, 147808, 215264, 246016, 258664, 267008, 286378, 295616, 430528, 517328, 572756, 591232, 861056, 1002323, 1034656, 1145512, 1182464, 1722112, 2004646, 2069312, 2291024, 4009292, 4138624, 4582048, 8018584, 8277248, 9164096, 16037168, 18328192, 32074336, 36656384, 64148672, 128297344, 256594688]

約数ペア:

[(1, 256594688), (2, 128297344), (4, 64148672), (7, 36656384), (8, 32074336), (14, 18328192), (16, 16037168), (28, 9164096), (31, 8277248), (32, 8018584), (56, 4582048), (62, 4138624), (64, 4009292), (112, 2291024), (124, 2069312), (128, 2004646), (149, 1722112), (217, 1182464), (224, 1145512), (248, 1034656), (256, 1002323), (298, 861056), (434, 591232), (448, 572756), (496, 517328), (596, 430528), (868, 295616), (896, 286378), (961, 267008), (992, 258664), (1043, 246016), (1192, 215264), (1736, 147808), (1792, 143189), (1922, 133504), (1984, 129332), (2086, 123008), (2384, 107632), (3472, 73904), (3844, 66752), (3968, 64666), (4172, 61504), (4619, 55552), (4768, 53816), (6727, 38144), (6944, 36952), (7688, 33376), (7936, 32333), (8344, 30752), (9238, 27776), (9536, 26908), (13454, 19072), (13888, 18476), (15376, 16688)]