66485780

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{4099}}^1$

素因数の和:4919

約数の個数: 24

約数和(自身を含む): 139826400

約数和(自身を除く): 73340620

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 4099, 8110, 8198, 16220, 16396, 20495, 40990, 81980, 3324289, 6648578, 13297156, 16621445, 33242890, 66485780]

約数ペア:

[(1, 66485780), (2, 33242890), (4, 16621445), (5, 13297156), (10, 6648578), (20, 3324289), (811, 81980), (1622, 40990), (3244, 20495), (4055, 16396), (4099, 16220), (8110, 8198)]