20199366908

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{54623}}^1$

素因数の和:54962

約数の個数: 48

約数和(自身を含む): 41405865984

約数和(自身を除く): 21206499076

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 281, 329, 562, 658, 1124, 1316, 1967, 3934, 7868, 13207, 26414, 52828, 54623, 92449, 109246, 184898, 218492, 369796, 382361, 764722, 1529444, 2567281, 5134562, 10269124, 15349063, 17970967, 30698126, 35941934, 61396252, 71883868, 107443441, 214886882, 429773764, 721405961, 1442811922, 2885623844, 5049841727, 10099683454, 20199366908]

約数ペア:

[(1, 20199366908), (2, 10099683454), (4, 5049841727), (7, 2885623844), (14, 1442811922), (28, 721405961), (47, 429773764), (94, 214886882), (188, 107443441), (281, 71883868), (329, 61396252), (562, 35941934), (658, 30698126), (1124, 17970967), (1316, 15349063), (1967, 10269124), (3934, 5134562), (7868, 2567281), (13207, 1529444), (26414, 764722), (52828, 382361), (54623, 369796), (92449, 218492), (109246, 184898)]