71004040

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4007}}^1$

素因数の和:4461

約数の個数: 32

約数和(自身を含む): 160159680

約数和(自身を除く): 89155640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4007, 4430, 8014, 8860, 16028, 17720, 20035, 32056, 40070, 80140, 160280, 1775101, 3550202, 7100404, 8875505, 14200808, 17751010, 35502020, 71004040]

約数ペア:

[(1, 71004040), (2, 35502020), (4, 17751010), (5, 14200808), (8, 8875505), (10, 7100404), (20, 3550202), (40, 1775101), (443, 160280), (886, 80140), (1772, 40070), (2215, 32056), (3544, 20035), (4007, 17720), (4430, 16028), (8014, 8860)]