20157367550

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{239}}^1\times {\mathrm{20323}}^1$

素因数の和:20657

約数の個数: 48

約数和(自身を含む): 38105061120

約数和(自身を除く): 17947693570

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 239, 415, 478, 830, 1195, 2075, 2390, 4150, 5975, 11950, 19837, 20323, 39674, 40646, 99185, 101615, 198370, 203230, 495925, 508075, 991850, 1016150, 1686809, 3373618, 4857197, 8434045, 9714394, 16868090, 24285985, 42170225, 48571970, 84340450, 121429925, 242859850, 403147351, 806294702, 2015736755, 4031473510, 10078683775, 20157367550]

約数ペア:

[(1, 20157367550), (2, 10078683775), (5, 4031473510), (10, 2015736755), (25, 806294702), (50, 403147351), (83, 242859850), (166, 121429925), (239, 84340450), (415, 48571970), (478, 42170225), (830, 24285985), (1195, 16868090), (2075, 9714394), (2390, 8434045), (4150, 4857197), (5975, 3373618), (11950, 1686809), (19837, 1016150), (20323, 991850), (39674, 508075), (40646, 495925), (99185, 203230), (101615, 198370)]