20123808440

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{903223}}^1$

素因数の和:903791

約数の個数: 32

約数和(自身を含む): 45359909280

約数和(自身を除く): 25236100840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4456, 5570, 11140, 22280, 903223, 1806446, 3612892, 4516115, 7225784, 9032230, 18064460, 36128920, 503095211, 1006190422, 2012380844, 2515476055, 4024761688, 5030952110, 10061904220, 20123808440]

約数ペア:

[(1, 20123808440), (2, 10061904220), (4, 5030952110), (5, 4024761688), (8, 2515476055), (10, 2012380844), (20, 1006190422), (40, 503095211), (557, 36128920), (1114, 18064460), (2228, 9032230), (2785, 7225784), (4456, 4516115), (5570, 3612892), (11140, 1806446), (22280, 903223)]