64852420

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{4261}}^1$

素因数の和:5031

約数の個数: 24

約数和(自身を含む): 136401048

約数和(自身を除く): 71548628

約数列:

[1, 2, 4, 5, 10, 20, 761, 1522, 3044, 3805, 4261, 7610, 8522, 15220, 17044, 21305, 42610, 85220, 3242621, 6485242, 12970484, 16213105, 32426210, 64852420]

約数ペア:

[(1, 64852420), (2, 32426210), (4, 16213105), (5, 12970484), (10, 6485242), (20, 3242621), (761, 85220), (1522, 42610), (3044, 21305), (3805, 17044), (4261, 15220), (7610, 8522)]