20148860

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9781}}^1$

素因数の和:9893

約数の個数: 24

約数和(自身を含む): 42727776

約数和(自身を除く): 22578916

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9781, 19562, 39124, 48905, 97810, 195620, 1007443, 2014886, 4029772, 5037215, 10074430, 20148860]

約数ペア:

[(1, 20148860), (2, 10074430), (4, 5037215), (5, 4029772), (10, 2014886), (20, 1007443), (103, 195620), (206, 97810), (412, 48905), (515, 39124), (1030, 19562), (2060, 9781)]