68395880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1783}}^1$

素因数の和:1938

約数の個数: 64

約数和(自身を含む): 177258240

約数和(自身を除く): 108862360

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, 1783, 1918, 2740, 3566, 3836, 4795, 5480, 7132, 7672, 8915, 9590, 12481, 14264, 17830, 19180, 24962, 35660, 38360, 49924, 62405, 71320, 99848, 124810, 244271, 249620, 488542, 499240, 977084, 1221355, 1709897, 1954168, 2442710, 3419794, 4885420, 6839588, 8549485, 9770840, 13679176, 17098970, 34197940, 68395880]

約数ペア:

[(1, 68395880), (2, 34197940), (4, 17098970), (5, 13679176), (7, 9770840), (8, 8549485), (10, 6839588), (14, 4885420), (20, 3419794), (28, 2442710), (35, 1954168), (40, 1709897), (56, 1221355), (70, 977084), (137, 499240), (140, 488542), (274, 249620), (280, 244271), (548, 124810), (685, 99848), (959, 71320), (1096, 62405), (1370, 49924), (1783, 38360), (1918, 35660), (2740, 24962), (3566, 19180), (3836, 17830), (4795, 14264), (5480, 12481), (7132, 9590), (7672, 8915)]