77755720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2027}}^1$

素因数の和:2182

約数の個数: 64

約数和(自身を含む): 201502080

約数和(自身を除く): 123746360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 548, 685, 959, 1096, 1370, 1918, 2027, 2740, 3836, 4054, 4795, 5480, 7672, 8108, 9590, 10135, 14189, 16216, 19180, 20270, 28378, 38360, 40540, 56756, 70945, 81080, 113512, 141890, 277699, 283780, 555398, 567560, 1110796, 1388495, 1943893, 2221592, 2776990, 3887786, 5553980, 7775572, 9719465, 11107960, 15551144, 19438930, 38877860, 77755720]

約数ペア:

[(1, 77755720), (2, 38877860), (4, 19438930), (5, 15551144), (7, 11107960), (8, 9719465), (10, 7775572), (14, 5553980), (20, 3887786), (28, 2776990), (35, 2221592), (40, 1943893), (56, 1388495), (70, 1110796), (137, 567560), (140, 555398), (274, 283780), (280, 277699), (548, 141890), (685, 113512), (959, 81080), (1096, 70945), (1370, 56756), (1918, 40540), (2027, 38360), (2740, 28378), (3836, 20270), (4054, 19180), (4795, 16216), (5480, 14189), (7672, 10135), (8108, 9590)]