15717880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4051}}^1$

素因数の和:4159

約数の個数: 32

約数和(自身を含む): 35738640

約数和(自身を除く): 20020760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4051, 8102, 16204, 20255, 32408, 40510, 81020, 162040, 392947, 785894, 1571788, 1964735, 3143576, 3929470, 7858940, 15717880]

約数ペア:

[(1, 15717880), (2, 7858940), (4, 3929470), (5, 3143576), (8, 1964735), (10, 1571788), (20, 785894), (40, 392947), (97, 162040), (194, 81020), (388, 40510), (485, 32408), (776, 20255), (970, 16204), (1940, 8102), (3880, 4051)]