80681800

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3701}}^1$

素因数の和:3826

約数の個数: 48

約数和(自身を含む): 189357300

約数和(自身を除く): 108675500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 1090, 2180, 2725, 3701, 4360, 5450, 7402, 10900, 14804, 18505, 21800, 29608, 37010, 74020, 92525, 148040, 185050, 370100, 403409, 740200, 806818, 1613636, 2017045, 3227272, 4034090, 8068180, 10085225, 16136360, 20170450, 40340900, 80681800]

約数ペア:

[(1, 80681800), (2, 40340900), (4, 20170450), (5, 16136360), (8, 10085225), (10, 8068180), (20, 4034090), (25, 3227272), (40, 2017045), (50, 1613636), (100, 806818), (109, 740200), (200, 403409), (218, 370100), (436, 185050), (545, 148040), (872, 92525), (1090, 74020), (2180, 37010), (2725, 29608), (3701, 21800), (4360, 18505), (5450, 14804), (7402, 10900)]