81343360

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:364

約数の個数: 128

約数和(自身を含む): 226391040

約数和(自身を除く): 145047680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 67, 70, 80, 112, 128, 134, 140, 160, 224, 268, 271, 280, 320, 335, 448, 469, 536, 542, 560, 640, 670, 896, 938, 1072, 1084, 1120, 1340, 1355, 1876, 1897, 2144, 2168, 2240, 2345, 2680, 2710, 3752, 3794, 4288, 4336, 4480, 4690, 5360, 5420, 7504, 7588, 8576, 8672, 9380, 9485, 10720, 10840, 15008, 15176, 17344, 18157, 18760, 18970, 21440, 21680, 30016, 30352, 34688, 36314, 37520, 37940, 42880, 43360, 60032, 60704, 72628, 75040, 75880, 86720, 90785, 121408, 127099, 145256, 150080, 151760, 173440, 181570, 242816, 254198, 290512, 300160, 303520, 363140, 508396, 581024, 607040, 635495, 726280, 1016792, 1162048, 1214080, 1270990, 1452560, 2033584, 2324096, 2541980, 2905120, 4067168, 5083960, 5810240, 8134336, 10167920, 11620480, 16268672, 20335840, 40671680, 81343360]

約数ペア:

[(1, 81343360), (2, 40671680), (4, 20335840), (5, 16268672), (7, 11620480), (8, 10167920), (10, 8134336), (14, 5810240), (16, 5083960), (20, 4067168), (28, 2905120), (32, 2541980), (35, 2324096), (40, 2033584), (56, 1452560), (64, 1270990), (67, 1214080), (70, 1162048), (80, 1016792), (112, 726280), (128, 635495), (134, 607040), (140, 581024), (160, 508396), (224, 363140), (268, 303520), (271, 300160), (280, 290512), (320, 254198), (335, 242816), (448, 181570), (469, 173440), (536, 151760), (542, 150080), (560, 145256), (640, 127099), (670, 121408), (896, 90785), (938, 86720), (1072, 75880), (1084, 75040), (1120, 72628), (1340, 60704), (1355, 60032), (1876, 43360), (1897, 42880), (2144, 37940), (2168, 37520), (2240, 36314), (2345, 34688), (2680, 30352), (2710, 30016), (3752, 21680), (3794, 21440), (4288, 18970), (4336, 18760), (4480, 18157), (4690, 17344), (5360, 15176), (5420, 15008), (7504, 10840), (7588, 10720), (8576, 9485), (8672, 9380)]