156980517740

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{39842771}}^1$

素因数の和:39842977

約数の個数: 24

約数和(自身を含む): 331332491952

約数和(自身を除く): 174351974212

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 39842771, 79685542, 159371084, 199213855, 398427710, 796855420, 7849025887, 15698051774, 31396103548, 39245129435, 78490258870, 156980517740]

約数ペア:

[(1, 156980517740), (2, 78490258870), (4, 39245129435), (5, 31396103548), (10, 15698051774), (20, 7849025887), (197, 796855420), (394, 398427710), (788, 199213855), (985, 159371084), (1970, 79685542), (3940, 39842771)]