84688640

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{607}}^1$

素因数の和:737

約数の個数: 72

約数和(自身を含む): 205054080

約数和(自身を除く): 120365440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 545, 607, 640, 872, 1090, 1214, 1280, 1744, 2180, 2428, 3035, 3488, 4360, 4856, 6070, 6976, 8720, 9712, 12140, 13952, 17440, 19424, 24280, 27904, 34880, 38848, 48560, 66163, 69760, 77696, 97120, 132326, 139520, 155392, 194240, 264652, 330815, 388480, 529304, 661630, 776960, 1058608, 1323260, 2117216, 2646520, 4234432, 5293040, 8468864, 10586080, 16937728, 21172160, 42344320, 84688640]

約数ペア:

[(1, 84688640), (2, 42344320), (4, 21172160), (5, 16937728), (8, 10586080), (10, 8468864), (16, 5293040), (20, 4234432), (32, 2646520), (40, 2117216), (64, 1323260), (80, 1058608), (109, 776960), (128, 661630), (160, 529304), (218, 388480), (256, 330815), (320, 264652), (436, 194240), (545, 155392), (607, 139520), (640, 132326), (872, 97120), (1090, 77696), (1214, 69760), (1280, 66163), (1744, 48560), (2180, 38848), (2428, 34880), (3035, 27904), (3488, 24280), (4360, 19424), (4856, 17440), (6070, 13952), (6976, 12140), (8720, 9712)]