256459008

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1511}}^1$

素因数の和:1560

約数の個数: 144

約数和(自身を含む): 778813056

約数和(自身を除く): 522354048

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 32, 34, 39, 48, 51, 52, 64, 68, 78, 96, 102, 104, 128, 136, 156, 192, 204, 208, 221, 256, 272, 312, 384, 408, 416, 442, 544, 624, 663, 768, 816, 832, 884, 1088, 1248, 1326, 1511, 1632, 1664, 1768, 2176, 2496, 2652, 3022, 3264, 3328, 3536, 4352, 4533, 4992, 5304, 6044, 6528, 7072, 9066, 9984, 10608, 12088, 13056, 14144, 18132, 19643, 21216, 24176, 25687, 28288, 36264, 39286, 42432, 48352, 51374, 56576, 58929, 72528, 77061, 78572, 84864, 96704, 102748, 117858, 145056, 154122, 157144, 169728, 193408, 205496, 235716, 290112, 308244, 314288, 333931, 386816, 410992, 471432, 580224, 616488, 628576, 667862, 821984, 942864, 1001793, 1160448, 1232976, 1257152, 1335724, 1643968, 1885728, 2003586, 2465952, 2514304, 2671448, 3287936, 3771456, 4007172, 4931904, 5028608, 5342896, 6575872, 7542912, 8014344, 9863808, 10685792, 15085824, 16028688, 19727616, 21371584, 32057376, 42743168, 64114752, 85486336, 128229504, 256459008]

約数ペア:

[(1, 256459008), (2, 128229504), (3, 85486336), (4, 64114752), (6, 42743168), (8, 32057376), (12, 21371584), (13, 19727616), (16, 16028688), (17, 15085824), (24, 10685792), (26, 9863808), (32, 8014344), (34, 7542912), (39, 6575872), (48, 5342896), (51, 5028608), (52, 4931904), (64, 4007172), (68, 3771456), (78, 3287936), (96, 2671448), (102, 2514304), (104, 2465952), (128, 2003586), (136, 1885728), (156, 1643968), (192, 1335724), (204, 1257152), (208, 1232976), (221, 1160448), (256, 1001793), (272, 942864), (312, 821984), (384, 667862), (408, 628576), (416, 616488), (442, 580224), (544, 471432), (624, 410992), (663, 386816), (768, 333931), (816, 314288), (832, 308244), (884, 290112), (1088, 235716), (1248, 205496), (1326, 193408), (1511, 169728), (1632, 157144), (1664, 154122), (1768, 145056), (2176, 117858), (2496, 102748), (2652, 96704), (3022, 84864), (3264, 78572), (3328, 77061), (3536, 72528), (4352, 58929), (4533, 56576), (4992, 51374), (5304, 48352), (6044, 42432), (6528, 39286), (7072, 36264), (9066, 28288), (9984, 25687), (10608, 24176), (12088, 21216), (13056, 19643), (14144, 18132)]