7680440

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1223}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 17405280

約数和(自身を除く): 9724840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1223, 1256, 1570, 2446, 3140, 4892, 6115, 6280, 9784, 12230, 24460, 48920, 192011, 384022, 768044, 960055, 1536088, 1920110, 3840220, 7680440]

約数ペア:

[(1, 7680440), (2, 3840220), (4, 1920110), (5, 1536088), (8, 960055), (10, 768044), (20, 384022), (40, 192011), (157, 48920), (314, 24460), (628, 12230), (785, 9784), (1223, 6280), (1256, 6115), (1570, 4892), (2446, 3140)]