256492100

素因数分解:

$2^2\times 5^2\times {\mathrm{2564921}}^1$

素因数の和:2564935

約数の個数: 18

約数和(自身を含む): 556588074

約数和(自身を除く): 300095974

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2564921, 5129842, 10259684, 12824605, 25649210, 51298420, 64123025, 128246050, 256492100]

約数ペア:

[(1, 256492100), (2, 128246050), (4, 64123025), (5, 51298420), (10, 25649210), (20, 12824605), (25, 10259684), (50, 5129842), (100, 2564921)]