66968620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{47161}}^1$

素因数の和:47241

約数の個数: 24

約数和(自身を含む): 142617888

約数和(自身を除く): 75649268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 47161, 94322, 188644, 235805, 471610, 943220, 3348431, 6696862, 13393724, 16742155, 33484310, 66968620]

約数ペア:

[(1, 66968620), (2, 33484310), (4, 16742155), (5, 13393724), (10, 6696862), (20, 3348431), (71, 943220), (142, 471610), (284, 235805), (355, 188644), (710, 94322), (1420, 47161)]