131617408

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 128

約数和(自身を含む): 311875200

約数和(自身を除く): 180257792

約数列:

[1, 2, 4, 8, 13, 16, 19, 23, 26, 32, 38, 46, 52, 64, 76, 92, 104, 128, 152, 181, 184, 208, 247, 299, 304, 362, 368, 416, 437, 494, 598, 608, 724, 736, 832, 874, 988, 1196, 1216, 1448, 1472, 1664, 1748, 1976, 2353, 2392, 2432, 2896, 2944, 3439, 3496, 3952, 4163, 4706, 4784, 5681, 5792, 6878, 6992, 7904, 8326, 9412, 9568, 11362, 11584, 13756, 13984, 15808, 16652, 18824, 19136, 22724, 23168, 27512, 27968, 31616, 33304, 37648, 38272, 44707, 45448, 54119, 55024, 55936, 66608, 75296, 79097, 89414, 90896, 108238, 110048, 133216, 150592, 158194, 178828, 181792, 216476, 220096, 266432, 301184, 316388, 357656, 363584, 432952, 440192, 532864, 632776, 715312, 727168, 865904, 1028261, 1265552, 1430624, 1731808, 2056522, 2531104, 2861248, 3463616, 4113044, 5062208, 5722496, 6927232, 8226088, 10124416, 16452176, 32904352, 65808704, 131617408]

約数ペア:

[(1, 131617408), (2, 65808704), (4, 32904352), (8, 16452176), (13, 10124416), (16, 8226088), (19, 6927232), (23, 5722496), (26, 5062208), (32, 4113044), (38, 3463616), (46, 2861248), (52, 2531104), (64, 2056522), (76, 1731808), (92, 1430624), (104, 1265552), (128, 1028261), (152, 865904), (181, 727168), (184, 715312), (208, 632776), (247, 532864), (299, 440192), (304, 432952), (362, 363584), (368, 357656), (416, 316388), (437, 301184), (494, 266432), (598, 220096), (608, 216476), (724, 181792), (736, 178828), (832, 158194), (874, 150592), (988, 133216), (1196, 110048), (1216, 108238), (1448, 90896), (1472, 89414), (1664, 79097), (1748, 75296), (1976, 66608), (2353, 55936), (2392, 55024), (2432, 54119), (2896, 45448), (2944, 44707), (3439, 38272), (3496, 37648), (3952, 33304), (4163, 31616), (4706, 27968), (4784, 27512), (5681, 23168), (5792, 22724), (6878, 19136), (6992, 18824), (7904, 16652), (8326, 15808), (9412, 13984), (9568, 13756), (11362, 11584)]