641144

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^2$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 1386840

約数和(自身を除く): 745696

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 214, 428, 749, 856, 1498, 2996, 5992, 11449, 22898, 45796, 80143, 91592, 160286, 320572, 641144]

約数ペア:

[(1, 641144), (2, 320572), (4, 160286), (7, 91592), (8, 80143), (14, 45796), (28, 22898), (56, 11449), (107, 5992), (214, 2996), (428, 1498), (749, 856)]