2648440

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 6047280

約数和(自身を除く): 3398840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 907, 1460, 1814, 2920, 3628, 4535, 7256, 9070, 18140, 36280, 66211, 132422, 264844, 331055, 529688, 662110, 1324220, 2648440]

約数ペア:

[(1, 2648440), (2, 1324220), (4, 662110), (5, 529688), (8, 331055), (10, 264844), (20, 132422), (40, 66211), (73, 36280), (146, 18140), (292, 9070), (365, 7256), (584, 4535), (730, 3628), (907, 2920), (1460, 1814)]