156965660

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{39839}}^1$

素因数の和:40045

約数の個数: 24

約数和(自身を含む): 331309440

約数和(自身を除く): 174343780

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 39839, 79678, 159356, 199195, 398390, 796780, 7848283, 15696566, 31393132, 39241415, 78482830, 156965660]

約数ペア:

[(1, 156965660), (2, 78482830), (4, 39241415), (5, 31393132), (10, 15696566), (20, 7848283), (197, 796780), (394, 398390), (788, 199195), (985, 159356), (1970, 79678), (3940, 39839)]