256804992

素因数分解:

$2^7\times 3^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 320

約数和(自身を含む): 853079040

約数和(自身を除く): 596274048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 31, 32, 34, 36, 47, 48, 51, 54, 62, 64, 68, 72, 81, 93, 94, 96, 102, 108, 124, 128, 136, 141, 144, 153, 162, 186, 188, 192, 204, 216, 248, 272, 279, 282, 288, 306, 324, 372, 376, 384, 408, 423, 432, 459, 496, 527, 544, 558, 564, 576, 612, 648, 744, 752, 799, 816, 837, 846, 864, 918, 992, 1054, 1088, 1116, 1128, 1152, 1224, 1269, 1296, 1377, 1457, 1488, 1504, 1581, 1598, 1632, 1674, 1692, 1728, 1836, 1984, 2108, 2176, 2232, 2256, 2397, 2448, 2511, 2538, 2592, 2754, 2914, 2976, 3008, 3162, 3196, 3264, 3348, 3384, 3456, 3672, 3807, 3968, 4216, 4371, 4464, 4512, 4743, 4794, 4896, 5022, 5076, 5184, 5508, 5828, 5952, 6016, 6324, 6392, 6528, 6696, 6768, 7191, 7344, 7614, 8432, 8742, 8928, 9024, 9486, 9588, 9792, 10044, 10152, 10368, 11016, 11656, 11904, 12648, 12784, 13113, 13392, 13536, 14229, 14382, 14688, 15228, 16864, 17484, 17856, 18048, 18972, 19176, 19584, 20088, 20304, 21573, 22032, 23312, 24769, 25296, 25568, 26226, 26784, 27072, 28458, 28764, 29376, 30456, 33728, 34968, 35712, 37944, 38352, 39339, 40176, 40608, 42687, 43146, 44064, 46624, 49538, 50592, 51136, 52452, 53568, 54144, 56916, 57528, 58752, 60912, 64719, 67456, 69936, 74307, 75888, 76704, 78678, 80352, 81216, 85374, 86292, 88128, 93248, 99076, 101184, 102272, 104904, 107136, 113832, 115056, 118017, 121824, 129438, 139872, 148614, 151776, 153408, 157356, 160704, 162432, 170748, 172584, 176256, 186496, 198152, 202368, 209808, 222921, 227664, 230112, 236034, 243648, 258876, 279744, 297228, 303552, 306816, 314712, 321408, 341496, 345168, 396304, 419616, 445842, 455328, 460224, 472068, 487296, 517752, 559488, 594456, 607104, 629424, 668763, 682992, 690336, 792608, 839232, 891684, 910656, 920448, 944136, 1035504, 1188912, 1258848, 1337526, 1365984, 1380672, 1585216, 1678464, 1783368, 1821312, 1888272, 2006289, 2071008, 2377824, 2517696, 2675052, 2731968, 2761344, 3170432, 3566736, 3776544, 4012578, 4142016, 4755648, 5035392, 5350104, 5463936, 7133472, 7553088, 8025156, 8284032, 9511296, 10700208, 14266944, 15106176, 16050312, 21400416, 28533888, 32100624, 42800832, 64201248, 85601664, 128402496, 256804992]

約数ペア:

[(1, 256804992), (2, 128402496), (3, 85601664), (4, 64201248), (6, 42800832), (8, 32100624), (9, 28533888), (12, 21400416), (16, 16050312), (17, 15106176), (18, 14266944), (24, 10700208), (27, 9511296), (31, 8284032), (32, 8025156), (34, 7553088), (36, 7133472), (47, 5463936), (48, 5350104), (51, 5035392), (54, 4755648), (62, 4142016), (64, 4012578), (68, 3776544), (72, 3566736), (81, 3170432), (93, 2761344), (94, 2731968), (96, 2675052), (102, 2517696), (108, 2377824), (124, 2071008), (128, 2006289), (136, 1888272), (141, 1821312), (144, 1783368), (153, 1678464), (162, 1585216), (186, 1380672), (188, 1365984), (192, 1337526), (204, 1258848), (216, 1188912), (248, 1035504), (272, 944136), (279, 920448), (282, 910656), (288, 891684), (306, 839232), (324, 792608), (372, 690336), (376, 682992), (384, 668763), (408, 629424), (423, 607104), (432, 594456), (459, 559488), (496, 517752), (527, 487296), (544, 472068), (558, 460224), (564, 455328), (576, 445842), (612, 419616), (648, 396304), (744, 345168), (752, 341496), (799, 321408), (816, 314712), (837, 306816), (846, 303552), (864, 297228), (918, 279744), (992, 258876), (1054, 243648), (1088, 236034), (1116, 230112), (1128, 227664), (1152, 222921), (1224, 209808), (1269, 202368), (1296, 198152), (1377, 186496), (1457, 176256), (1488, 172584), (1504, 170748), (1581, 162432), (1598, 160704), (1632, 157356), (1674, 153408), (1692, 151776), (1728, 148614), (1836, 139872), (1984, 129438), (2108, 121824), (2176, 118017), (2232, 115056), (2256, 113832), (2397, 107136), (2448, 104904), (2511, 102272), (2538, 101184), (2592, 99076), (2754, 93248), (2914, 88128), (2976, 86292), (3008, 85374), (3162, 81216), (3196, 80352), (3264, 78678), (3348, 76704), (3384, 75888), (3456, 74307), (3672, 69936), (3807, 67456), (3968, 64719), (4216, 60912), (4371, 58752), (4464, 57528), (4512, 56916), (4743, 54144), (4794, 53568), (4896, 52452), (5022, 51136), (5076, 50592), (5184, 49538), (5508, 46624), (5828, 44064), (5952, 43146), (6016, 42687), (6324, 40608), (6392, 40176), (6528, 39339), (6696, 38352), (6768, 37944), (7191, 35712), (7344, 34968), (7614, 33728), (8432, 30456), (8742, 29376), (8928, 28764), (9024, 28458), (9486, 27072), (9588, 26784), (9792, 26226), (10044, 25568), (10152, 25296), (10368, 24769), (11016, 23312), (11656, 22032), (11904, 21573), (12648, 20304), (12784, 20088), (13113, 19584), (13392, 19176), (13536, 18972), (14229, 18048), (14382, 17856), (14688, 17484), (15228, 16864)]