777738640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1388819}}^1$

素因数の和:1388839

約数の個数: 40

約数和(自身を含む): 2066564160

約数和(自身を除く): 1288825520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1388819, 2777638, 5555276, 6944095, 9721733, 11110552, 13888190, 19443466, 22221104, 27776380, 38886932, 48608665, 55552760, 77773864, 97217330, 111105520, 155547728, 194434660, 388869320, 777738640]

約数ペア:

[(1, 777738640), (2, 388869320), (4, 194434660), (5, 155547728), (7, 111105520), (8, 97217330), (10, 77773864), (14, 55552760), (16, 48608665), (20, 38886932), (28, 27776380), (35, 22221104), (40, 19443466), (56, 13888190), (70, 11110552), (80, 9721733), (112, 6944095), (140, 5555276), (280, 2777638), (560, 1388819)]