78512380

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{19927}}^1$

素因数の和:20133

約数の個数: 24

約数和(自身を含む): 165721248

約数和(自身を除く): 87208868

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 19927, 39854, 79708, 99635, 199270, 398540, 3925619, 7851238, 15702476, 19628095, 39256190, 78512380]

約数ペア:

[(1, 78512380), (2, 39256190), (4, 19628095), (5, 15702476), (10, 7851238), (20, 3925619), (197, 398540), (394, 199270), (788, 99635), (985, 79708), (1970, 39854), (3940, 19927)]