638561664

素因数分解:

$2^7\times 3^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:330

約数の個数: 256

約数和(自身を含む): 2071742400

約数和(自身を除く): 1433180736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 61, 64, 72, 78, 96, 104, 108, 117, 122, 128, 144, 156, 183, 192, 208, 216, 233, 234, 244, 288, 312, 351, 366, 384, 416, 432, 466, 468, 488, 549, 576, 624, 699, 702, 732, 793, 832, 864, 932, 936, 976, 1098, 1152, 1248, 1398, 1404, 1464, 1586, 1647, 1664, 1728, 1864, 1872, 1952, 2097, 2196, 2379, 2496, 2796, 2808, 2928, 3029, 3172, 3294, 3456, 3728, 3744, 3904, 4194, 4392, 4758, 4992, 5592, 5616, 5856, 6058, 6291, 6344, 6588, 7137, 7456, 7488, 7808, 8388, 8784, 9087, 9516, 11184, 11232, 11712, 12116, 12582, 12688, 13176, 14213, 14274, 14912, 14976, 16776, 17568, 18174, 19032, 21411, 22368, 22464, 23424, 24232, 25164, 25376, 26352, 27261, 28426, 28548, 29824, 33552, 35136, 36348, 38064, 42639, 42822, 44736, 44928, 48464, 50328, 50752, 52704, 54522, 56852, 57096, 67104, 70272, 72696, 76128, 81783, 85278, 85644, 89472, 96928, 100656, 101504, 105408, 109044, 113704, 114192, 127917, 134208, 145392, 152256, 163566, 170556, 171288, 184769, 193856, 201312, 210816, 218088, 227408, 228384, 255834, 268416, 290784, 304512, 327132, 341112, 342576, 369538, 383751, 387712, 402624, 436176, 454816, 456768, 511668, 554307, 581568, 654264, 682224, 685152, 739076, 767502, 805248, 872352, 909632, 913536, 1023336, 1108614, 1163136, 1308528, 1364448, 1370304, 1478152, 1535004, 1662921, 1744704, 1819264, 2046672, 2217228, 2617056, 2728896, 2740608, 2956304, 3070008, 3325842, 3489408, 4093344, 4434456, 4988763, 5234112, 5457792, 5912608, 6140016, 6651684, 8186688, 8868912, 9977526, 10468224, 11825216, 12280032, 13303368, 16373376, 17737824, 19955052, 23650432, 24560064, 26606736, 35475648, 39910104, 49120128, 53213472, 70951296, 79820208, 106426944, 159640416, 212853888, 319280832, 638561664]

約数ペア:

[(1, 638561664), (2, 319280832), (3, 212853888), (4, 159640416), (6, 106426944), (8, 79820208), (9, 70951296), (12, 53213472), (13, 49120128), (16, 39910104), (18, 35475648), (24, 26606736), (26, 24560064), (27, 23650432), (32, 19955052), (36, 17737824), (39, 16373376), (48, 13303368), (52, 12280032), (54, 11825216), (61, 10468224), (64, 9977526), (72, 8868912), (78, 8186688), (96, 6651684), (104, 6140016), (108, 5912608), (117, 5457792), (122, 5234112), (128, 4988763), (144, 4434456), (156, 4093344), (183, 3489408), (192, 3325842), (208, 3070008), (216, 2956304), (233, 2740608), (234, 2728896), (244, 2617056), (288, 2217228), (312, 2046672), (351, 1819264), (366, 1744704), (384, 1662921), (416, 1535004), (432, 1478152), (466, 1370304), (468, 1364448), (488, 1308528), (549, 1163136), (576, 1108614), (624, 1023336), (699, 913536), (702, 909632), (732, 872352), (793, 805248), (832, 767502), (864, 739076), (932, 685152), (936, 682224), (976, 654264), (1098, 581568), (1152, 554307), (1248, 511668), (1398, 456768), (1404, 454816), (1464, 436176), (1586, 402624), (1647, 387712), (1664, 383751), (1728, 369538), (1864, 342576), (1872, 341112), (1952, 327132), (2097, 304512), (2196, 290784), (2379, 268416), (2496, 255834), (2796, 228384), (2808, 227408), (2928, 218088), (3029, 210816), (3172, 201312), (3294, 193856), (3456, 184769), (3728, 171288), (3744, 170556), (3904, 163566), (4194, 152256), (4392, 145392), (4758, 134208), (4992, 127917), (5592, 114192), (5616, 113704), (5856, 109044), (6058, 105408), (6291, 101504), (6344, 100656), (6588, 96928), (7137, 89472), (7456, 85644), (7488, 85278), (7808, 81783), (8388, 76128), (8784, 72696), (9087, 70272), (9516, 67104), (11184, 57096), (11232, 56852), (11712, 54522), (12116, 52704), (12582, 50752), (12688, 50328), (13176, 48464), (14213, 44928), (14274, 44736), (14912, 42822), (14976, 42639), (16776, 38064), (17568, 36348), (18174, 35136), (19032, 33552), (21411, 29824), (22368, 28548), (22464, 28426), (23424, 27261), (24232, 26352), (25164, 25376)]