7858940

素因数分解:

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

素因数の和:4157

約数の個数: 24

約数和(自身を含む): 16678032

約数和(自身を除く): 8819092

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 4051, 8102, 16204, 20255, 40510, 81020, 392947, 785894, 1571788, 1964735, 3929470, 7858940]

約数ペア:

[(1, 7858940), (2, 3929470), (4, 1964735), (5, 1571788), (10, 785894), (20, 392947), (97, 81020), (194, 40510), (388, 20255), (485, 16204), (970, 8102), (1940, 4051)]