400243968

素因数分解:

$2^8\times 3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:305

約数の個数: 216

約数和(自身を含む): 1249946880

約数和(自身を除く): 849702912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 41, 48, 57, 64, 72, 76, 82, 96, 114, 123, 128, 144, 152, 164, 171, 192, 223, 228, 246, 256, 288, 304, 328, 342, 369, 384, 446, 456, 492, 576, 608, 656, 669, 684, 738, 768, 779, 892, 912, 984, 1152, 1216, 1312, 1338, 1368, 1476, 1558, 1784, 1824, 1968, 2007, 2304, 2337, 2432, 2624, 2676, 2736, 2952, 3116, 3568, 3648, 3936, 4014, 4237, 4674, 4864, 5248, 5352, 5472, 5904, 6232, 7011, 7136, 7296, 7872, 8028, 8474, 9143, 9348, 10496, 10704, 10944, 11808, 12464, 12711, 14022, 14272, 14592, 15744, 16056, 16948, 18286, 18696, 21408, 21888, 23616, 24928, 25422, 27429, 28044, 28544, 31488, 32112, 33896, 36572, 37392, 38133, 42816, 43776, 47232, 49856, 50844, 54858, 56088, 57088, 64224, 67792, 73144, 74784, 76266, 82287, 85632, 94464, 99712, 101688, 109716, 112176, 128448, 135584, 146288, 149568, 152532, 164574, 171264, 173717, 199424, 203376, 219432, 224352, 256896, 271168, 292576, 299136, 305064, 329148, 347434, 406752, 438864, 448704, 513792, 521151, 542336, 585152, 598272, 610128, 658296, 694868, 813504, 877728, 897408, 1042302, 1084672, 1170304, 1220256, 1316592, 1389736, 1563453, 1627008, 1755456, 1794816, 2084604, 2340608, 2440512, 2633184, 2779472, 3126906, 3254016, 3510912, 4169208, 4881024, 5266368, 5558944, 6253812, 7021824, 8338416, 9762048, 10532736, 11117888, 12507624, 16676832, 21065472, 22235776, 25015248, 33353664, 44471552, 50030496, 66707328, 100060992, 133414656, 200121984, 400243968]

約数ペア:

[(1, 400243968), (2, 200121984), (3, 133414656), (4, 100060992), (6, 66707328), (8, 50030496), (9, 44471552), (12, 33353664), (16, 25015248), (18, 22235776), (19, 21065472), (24, 16676832), (32, 12507624), (36, 11117888), (38, 10532736), (41, 9762048), (48, 8338416), (57, 7021824), (64, 6253812), (72, 5558944), (76, 5266368), (82, 4881024), (96, 4169208), (114, 3510912), (123, 3254016), (128, 3126906), (144, 2779472), (152, 2633184), (164, 2440512), (171, 2340608), (192, 2084604), (223, 1794816), (228, 1755456), (246, 1627008), (256, 1563453), (288, 1389736), (304, 1316592), (328, 1220256), (342, 1170304), (369, 1084672), (384, 1042302), (446, 897408), (456, 877728), (492, 813504), (576, 694868), (608, 658296), (656, 610128), (669, 598272), (684, 585152), (738, 542336), (768, 521151), (779, 513792), (892, 448704), (912, 438864), (984, 406752), (1152, 347434), (1216, 329148), (1312, 305064), (1338, 299136), (1368, 292576), (1476, 271168), (1558, 256896), (1784, 224352), (1824, 219432), (1968, 203376), (2007, 199424), (2304, 173717), (2337, 171264), (2432, 164574), (2624, 152532), (2676, 149568), (2736, 146288), (2952, 135584), (3116, 128448), (3568, 112176), (3648, 109716), (3936, 101688), (4014, 99712), (4237, 94464), (4674, 85632), (4864, 82287), (5248, 76266), (5352, 74784), (5472, 73144), (5904, 67792), (6232, 64224), (7011, 57088), (7136, 56088), (7296, 54858), (7872, 50844), (8028, 49856), (8474, 47232), (9143, 43776), (9348, 42816), (10496, 38133), (10704, 37392), (10944, 36572), (11808, 33896), (12464, 32112), (12711, 31488), (14022, 28544), (14272, 28044), (14592, 27429), (15744, 25422), (16056, 24928), (16948, 23616), (18286, 21888), (18696, 21408)]