2181396040

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{657047}}^1$

素因数の和:657141

約数の個数: 32

約数和(自身を含む): 4967282880

約数和(自身を除く): 2785886840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 657047, 1314094, 2628188, 3285235, 5256376, 6570470, 13140940, 26281880, 54534901, 109069802, 218139604, 272674505, 436279208, 545349010, 1090698020, 2181396040]

約数ペア:

[(1, 2181396040), (2, 1090698020), (4, 545349010), (5, 436279208), (8, 272674505), (10, 218139604), (20, 109069802), (40, 54534901), (83, 26281880), (166, 13140940), (332, 6570470), (415, 5256376), (664, 3285235), (830, 2628188), (1660, 1314094), (3320, 657047)]