77471780

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{5987}}^1$

素因数の和:6643

約数の個数: 24

約数和(自身を含む): 162969408

約数和(自身を除く): 85497628

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 5987, 6470, 11974, 12940, 23948, 29935, 59870, 119740, 3873589, 7747178, 15494356, 19367945, 38735890, 77471780]

約数ペア:

[(1, 77471780), (2, 38735890), (4, 19367945), (5, 15494356), (10, 7747178), (20, 3873589), (647, 119740), (1294, 59870), (2588, 29935), (3235, 23948), (5987, 12940), (6470, 11974)]