638673984

素因数分解:

$2^6\times 3^{10}\times {\mathrm{13}}^2$

素因数の和:68

約数の個数: 231

約数和(自身を含む): 2058525093

約数和(自身を除く): 1419851109

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 169, 192, 208, 216, 234, 243, 288, 312, 324, 338, 351, 416, 432, 468, 486, 507, 576, 624, 648, 676, 702, 729, 832, 864, 936, 972, 1014, 1053, 1248, 1296, 1352, 1404, 1458, 1521, 1728, 1872, 1944, 2028, 2106, 2187, 2496, 2592, 2704, 2808, 2916, 3042, 3159, 3744, 3888, 4056, 4212, 4374, 4563, 5184, 5408, 5616, 5832, 6084, 6318, 6561, 7488, 7776, 8112, 8424, 8748, 9126, 9477, 10816, 11232, 11664, 12168, 12636, 13122, 13689, 15552, 16224, 16848, 17496, 18252, 18954, 19683, 22464, 23328, 24336, 25272, 26244, 27378, 28431, 32448, 33696, 34992, 36504, 37908, 39366, 41067, 46656, 48672, 50544, 52488, 54756, 56862, 59049, 67392, 69984, 73008, 75816, 78732, 82134, 85293, 97344, 101088, 104976, 109512, 113724, 118098, 123201, 139968, 146016, 151632, 157464, 164268, 170586, 202176, 209952, 219024, 227448, 236196, 246402, 255879, 292032, 303264, 314928, 328536, 341172, 369603, 419904, 438048, 454896, 472392, 492804, 511758, 606528, 629856, 657072, 682344, 739206, 767637, 876096, 909792, 944784, 985608, 1023516, 1108809, 1259712, 1314144, 1364688, 1478412, 1535274, 1819584, 1889568, 1971216, 2047032, 2217618, 2628288, 2729376, 2956824, 3070548, 3326427, 3779136, 3942432, 4094064, 4435236, 5458752, 5913648, 6141096, 6652854, 7884864, 8188128, 8870472, 9979281, 11827296, 12282192, 13305708, 16376256, 17740944, 19958562, 23654592, 24564384, 26611416, 35481888, 39917124, 49128768, 53222832, 70963776, 79834248, 106445664, 159668496, 212891328, 319336992, 638673984]

約数ペア:

[(1, 638673984), (2, 319336992), (3, 212891328), (4, 159668496), (6, 106445664), (8, 79834248), (9, 70963776), (12, 53222832), (13, 49128768), (16, 39917124), (18, 35481888), (24, 26611416), (26, 24564384), (27, 23654592), (32, 19958562), (36, 17740944), (39, 16376256), (48, 13305708), (52, 12282192), (54, 11827296), (64, 9979281), (72, 8870472), (78, 8188128), (81, 7884864), (96, 6652854), (104, 6141096), (108, 5913648), (117, 5458752), (144, 4435236), (156, 4094064), (162, 3942432), (169, 3779136), (192, 3326427), (208, 3070548), (216, 2956824), (234, 2729376), (243, 2628288), (288, 2217618), (312, 2047032), (324, 1971216), (338, 1889568), (351, 1819584), (416, 1535274), (432, 1478412), (468, 1364688), (486, 1314144), (507, 1259712), (576, 1108809), (624, 1023516), (648, 985608), (676, 944784), (702, 909792), (729, 876096), (832, 767637), (864, 739206), (936, 682344), (972, 657072), (1014, 629856), (1053, 606528), (1248, 511758), (1296, 492804), (1352, 472392), (1404, 454896), (1458, 438048), (1521, 419904), (1728, 369603), (1872, 341172), (1944, 328536), (2028, 314928), (2106, 303264), (2187, 292032), (2496, 255879), (2592, 246402), (2704, 236196), (2808, 227448), (2916, 219024), (3042, 209952), (3159, 202176), (3744, 170586), (3888, 164268), (4056, 157464), (4212, 151632), (4374, 146016), (4563, 139968), (5184, 123201), (5408, 118098), (5616, 113724), (5832, 109512), (6084, 104976), (6318, 101088), (6561, 97344), (7488, 85293), (7776, 82134), (8112, 78732), (8424, 75816), (8748, 73008), (9126, 69984), (9477, 67392), (10816, 59049), (11232, 56862), (11664, 54756), (12168, 52488), (12636, 50544), (13122, 48672), (13689, 46656), (15552, 41067), (16224, 39366), (16848, 37908), (17496, 36504), (18252, 34992), (18954, 33696), (19683, 32448), (22464, 28431), (23328, 27378), (24336, 26244)]