78771760

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10151}}^1$

素因数の和:10261

約数の個数: 40

約数和(自身を含む): 185050656

約数和(自身を除く): 106278896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 10151, 20302, 40604, 50755, 81208, 101510, 162416, 203020, 406040, 812080, 984647, 1969294, 3938588, 4923235, 7877176, 9846470, 15754352, 19692940, 39385880, 78771760]

約数ペア:

[(1, 78771760), (2, 39385880), (4, 19692940), (5, 15754352), (8, 9846470), (10, 7877176), (16, 4923235), (20, 3938588), (40, 1969294), (80, 984647), (97, 812080), (194, 406040), (388, 203020), (485, 162416), (776, 101510), (970, 81208), (1552, 50755), (1940, 40604), (3880, 20302), (7760, 10151)]