8168920

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{461}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 18461520

約数和(自身を除く): 10292600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 461, 886, 922, 1772, 1844, 2215, 2305, 3544, 3688, 4430, 4610, 8860, 9220, 17720, 18440, 204223, 408446, 816892, 1021115, 1633784, 2042230, 4084460, 8168920]

約数ペア:

[(1, 8168920), (2, 4084460), (4, 2042230), (5, 1633784), (8, 1021115), (10, 816892), (20, 408446), (40, 204223), (443, 18440), (461, 17720), (886, 9220), (922, 8860), (1772, 4610), (1844, 4430), (2215, 3688), (2305, 3544)]