406520380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2903717}}^1$

素因数の和:2903733

約数の個数: 24

約数和(自身を含む): 975649248

約数和(自身を除く): 569128868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2903717, 5807434, 11614868, 14518585, 20326019, 29037170, 40652038, 58074340, 81304076, 101630095, 203260190, 406520380]

約数ペア:

[(1, 406520380), (2, 203260190), (4, 101630095), (5, 81304076), (7, 58074340), (10, 40652038), (14, 29037170), (20, 20326019), (28, 14518585), (35, 11614868), (70, 5807434), (140, 2903717)]