1297054720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1499}}^1$

素因数の和:1550

約数の個数: 132

約数和(自身を含む): 3371409000

約数和(自身を除く): 2074354280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 512, 520, 640, 676, 832, 845, 1024, 1040, 1280, 1352, 1499, 1664, 1690, 2080, 2560, 2704, 2998, 3328, 3380, 4160, 5120, 5408, 5996, 6656, 6760, 7495, 8320, 10816, 11992, 13312, 13520, 14990, 16640, 19487, 21632, 23984, 27040, 29980, 33280, 38974, 43264, 47968, 54080, 59960, 66560, 77948, 86528, 95936, 97435, 108160, 119920, 155896, 173056, 191872, 194870, 216320, 239840, 253331, 311792, 383744, 389740, 432640, 479680, 506662, 623584, 767488, 779480, 865280, 959360, 1013324, 1247168, 1266655, 1534976, 1558960, 1918720, 2026648, 2494336, 2533310, 3117920, 3837440, 4053296, 4988672, 5066620, 6235840, 7674880, 8106592, 9977344, 10133240, 12471680, 16213184, 19954688, 20266480, 24943360, 32426368, 40532960, 49886720, 64852736, 81065920, 99773440, 129705472, 162131840, 259410944, 324263680, 648527360, 1297054720]

約数ペア:

[(1, 1297054720), (2, 648527360), (4, 324263680), (5, 259410944), (8, 162131840), (10, 129705472), (13, 99773440), (16, 81065920), (20, 64852736), (26, 49886720), (32, 40532960), (40, 32426368), (52, 24943360), (64, 20266480), (65, 19954688), (80, 16213184), (104, 12471680), (128, 10133240), (130, 9977344), (160, 8106592), (169, 7674880), (208, 6235840), (256, 5066620), (260, 4988672), (320, 4053296), (338, 3837440), (416, 3117920), (512, 2533310), (520, 2494336), (640, 2026648), (676, 1918720), (832, 1558960), (845, 1534976), (1024, 1266655), (1040, 1247168), (1280, 1013324), (1352, 959360), (1499, 865280), (1664, 779480), (1690, 767488), (2080, 623584), (2560, 506662), (2704, 479680), (2998, 432640), (3328, 389740), (3380, 383744), (4160, 311792), (5120, 253331), (5408, 239840), (5996, 216320), (6656, 194870), (6760, 191872), (7495, 173056), (8320, 155896), (10816, 119920), (11992, 108160), (13312, 97435), (13520, 95936), (14990, 86528), (16640, 77948), (19487, 66560), (21632, 59960), (23984, 54080), (27040, 47968), (29980, 43264), (33280, 38974)]