640149128

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{773}}^1\times {\mathrm{1697}}^1$

素因数の和:2537

約数の個数: 32

約数和(自身を含む): 1222254360

約数和(自身を除く): 582105232

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 773, 1546, 1697, 3092, 3394, 6184, 6788, 13576, 47153, 94306, 103517, 188612, 207034, 377224, 414068, 828136, 1311781, 2623562, 5247124, 10494248, 80018641, 160037282, 320074564, 640149128]

約数ペア:

[(1, 640149128), (2, 320074564), (4, 160037282), (8, 80018641), (61, 10494248), (122, 5247124), (244, 2623562), (488, 1311781), (773, 828136), (1546, 414068), (1697, 377224), (3092, 207034), (3394, 188612), (6184, 103517), (6788, 94306), (13576, 47153)]