155019580

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{79907}}^1$

素因数の和:80013

約数の個数: 24

約数和(自身を含む): 328901328

約数和(自身を除く): 173881748

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 79907, 159814, 319628, 399535, 799070, 1598140, 7750979, 15501958, 31003916, 38754895, 77509790, 155019580]

約数ペア:

[(1, 155019580), (2, 77509790), (4, 38754895), (5, 31003916), (10, 15501958), (20, 7750979), (97, 1598140), (194, 799070), (388, 399535), (485, 319628), (970, 159814), (1940, 79907)]