20199998588

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1395413}}^1$

素因数の和:1395482

約数の個数: 48

約数和(自身を含む): 45010473984

約数和(自身を除く): 24810475396

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 77, 94, 154, 188, 308, 329, 517, 658, 1034, 1316, 2068, 3619, 7238, 14476, 1395413, 2790826, 5581652, 9767891, 15349543, 19535782, 30699086, 39071564, 61398172, 65584411, 107446801, 131168822, 214893602, 262337644, 429787204, 459090877, 721428521, 918181754, 1442857042, 1836363508, 2885714084, 5049999647, 10099999294, 20199998588]

約数ペア:

[(1, 20199998588), (2, 10099999294), (4, 5049999647), (7, 2885714084), (11, 1836363508), (14, 1442857042), (22, 918181754), (28, 721428521), (44, 459090877), (47, 429787204), (77, 262337644), (94, 214893602), (154, 131168822), (188, 107446801), (308, 65584411), (329, 61398172), (517, 39071564), (658, 30699086), (1034, 19535782), (1316, 15349543), (2068, 9767891), (3619, 5581652), (7238, 2790826), (14476, 1395413)]