68165720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1777}}^1$

素因数の和:1932

約数の個数: 64

約数和(自身を含む): 176662080

約数和(自身を除く): 108496360

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, 1777, 1918, 2740, 3554, 3836, 4795, 5480, 7108, 7672, 8885, 9590, 12439, 14216, 17770, 19180, 24878, 35540, 38360, 49756, 62195, 71080, 99512, 124390, 243449, 248780, 486898, 497560, 973796, 1217245, 1704143, 1947592, 2434490, 3408286, 4868980, 6816572, 8520715, 9737960, 13633144, 17041430, 34082860, 68165720]

約数ペア:

[(1, 68165720), (2, 34082860), (4, 17041430), (5, 13633144), (7, 9737960), (8, 8520715), (10, 6816572), (14, 4868980), (20, 3408286), (28, 2434490), (35, 1947592), (40, 1704143), (56, 1217245), (70, 973796), (137, 497560), (140, 486898), (274, 248780), (280, 243449), (548, 124390), (685, 99512), (959, 71080), (1096, 62195), (1370, 49756), (1777, 38360), (1918, 35540), (2740, 24878), (3554, 19180), (3836, 17770), (4795, 14216), (5480, 12439), (7108, 9590), (7672, 8885)]