51290240

素因数分解:

$2^7\times 5^1\times {\mathrm{80141}}^1$

素因数の和:80160

約数の個数: 32

約数和(自身を含む): 122617260

約数和(自身を除く): 71327020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 80141, 160282, 320564, 400705, 641128, 801410, 1282256, 1602820, 2564512, 3205640, 5129024, 6411280, 10258048, 12822560, 25645120, 51290240]

約数ペア:

[(1, 51290240), (2, 25645120), (4, 12822560), (5, 10258048), (8, 6411280), (10, 5129024), (16, 3205640), (20, 2564512), (32, 1602820), (40, 1282256), (64, 801410), (80, 641128), (128, 400705), (160, 320564), (320, 160282), (640, 80141)]