66191780

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{4349}}^1$

素因数の和:5119

約数の個数: 24

約数和(自身を含む): 139217400

約数和(自身を除く): 73025620

約数列:

[1, 2, 4, 5, 10, 20, 761, 1522, 3044, 3805, 4349, 7610, 8698, 15220, 17396, 21745, 43490, 86980, 3309589, 6619178, 13238356, 16547945, 33095890, 66191780]

約数ペア:

[(1, 66191780), (2, 33095890), (4, 16547945), (5, 13238356), (10, 6619178), (20, 3309589), (761, 86980), (1522, 43490), (3044, 21745), (3805, 17396), (4349, 15220), (7610, 8698)]