13011580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 29141280

約数和(自身を除く): 16129700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 353, 380, 388, 485, 706, 970, 1412, 1765, 1843, 1940, 3530, 3686, 6707, 7060, 7372, 9215, 13414, 18430, 26828, 33535, 34241, 36860, 67070, 68482, 134140, 136964, 171205, 342410, 650579, 684820, 1301158, 2602316, 3252895, 6505790, 13011580]

約数ペア:

[(1, 13011580), (2, 6505790), (4, 3252895), (5, 2602316), (10, 1301158), (19, 684820), (20, 650579), (38, 342410), (76, 171205), (95, 136964), (97, 134140), (190, 68482), (194, 67070), (353, 36860), (380, 34241), (388, 33535), (485, 26828), (706, 18430), (970, 13414), (1412, 9215), (1765, 7372), (1843, 7060), (1940, 6707), (3530, 3686)]