7800740

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4021}}^1$

素因数の和:4127

約数の個数: 24

約数和(自身を含む): 16554552

約数和(自身を除く): 8753812

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 4021, 8042, 16084, 20105, 40210, 80420, 390037, 780074, 1560148, 1950185, 3900370, 7800740]

約数ペア:

[(1, 7800740), (2, 3900370), (4, 1950185), (5, 1560148), (10, 780074), (20, 390037), (97, 80420), (194, 40210), (388, 20105), (485, 16084), (970, 8042), (1940, 4021)]