208020860

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{100981}}^1$

素因数の和:101093

約数の個数: 24

約数和(自身を含む): 441089376

約数和(自身を除く): 233068516

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 100981, 201962, 403924, 504905, 1009810, 2019620, 10401043, 20802086, 41604172, 52005215, 104010430, 208020860]

約数ペア:

[(1, 208020860), (2, 104010430), (4, 52005215), (5, 41604172), (10, 20802086), (20, 10401043), (103, 2019620), (206, 1009810), (412, 504905), (515, 403924), (1030, 201962), (2060, 100981)]