81519431680

素因数分解:

$2^{12}\times 5^1\times {\mathrm{571}}^1\times {\mathrm{6971}}^1$

素因数の和:7571

約数の個数: 104

約数和(自身を含む): 195993461664

約数和(自身を除く): 114474029984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 571, 640, 1024, 1142, 1280, 2048, 2284, 2560, 2855, 4096, 4568, 5120, 5710, 6971, 9136, 10240, 11420, 13942, 18272, 20480, 22840, 27884, 34855, 36544, 45680, 55768, 69710, 73088, 91360, 111536, 139420, 146176, 182720, 223072, 278840, 292352, 365440, 446144, 557680, 584704, 730880, 892288, 1115360, 1169408, 1461760, 1784576, 2230720, 2338816, 2923520, 3569152, 3980441, 4461440, 5847040, 7138304, 7960882, 8922880, 11694080, 14276608, 15921764, 17845760, 19902205, 28553216, 31843528, 35691520, 39804410, 63687056, 71383040, 79608820, 127374112, 142766080, 159217640, 254748224, 318435280, 509496448, 636870560, 1018992896, 1273741120, 2037985792, 2547482240, 4075971584, 5094964480, 8151943168, 10189928960, 16303886336, 20379857920, 40759715840, 81519431680]

約数ペア:

[(1, 81519431680), (2, 40759715840), (4, 20379857920), (5, 16303886336), (8, 10189928960), (10, 8151943168), (16, 5094964480), (20, 4075971584), (32, 2547482240), (40, 2037985792), (64, 1273741120), (80, 1018992896), (128, 636870560), (160, 509496448), (256, 318435280), (320, 254748224), (512, 159217640), (571, 142766080), (640, 127374112), (1024, 79608820), (1142, 71383040), (1280, 63687056), (2048, 39804410), (2284, 35691520), (2560, 31843528), (2855, 28553216), (4096, 19902205), (4568, 17845760), (5120, 15921764), (5710, 14276608), (6971, 11694080), (9136, 8922880), (10240, 7960882), (11420, 7138304), (13942, 5847040), (18272, 4461440), (20480, 3980441), (22840, 3569152), (27884, 2923520), (34855, 2338816), (36544, 2230720), (45680, 1784576), (55768, 1461760), (69710, 1169408), (73088, 1115360), (91360, 892288), (111536, 730880), (139420, 584704), (146176, 557680), (182720, 446144), (223072, 365440), (278840, 292352)]