20778190100

素因数分解:

$2^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{1244203}}^1$

素因数の和:1244384

約数の個数: 36

約数和(自身を含む): 45358701024

約数和(自身を除く): 24580510924

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 167, 334, 668, 835, 1670, 3340, 4175, 8350, 16700, 1244203, 2488406, 4976812, 6221015, 12442030, 24884060, 31105075, 62210150, 124420300, 207781901, 415563802, 831127604, 1038909505, 2077819010, 4155638020, 5194547525, 10389095050, 20778190100]

約数ペア:

[(1, 20778190100), (2, 10389095050), (4, 5194547525), (5, 4155638020), (10, 2077819010), (20, 1038909505), (25, 831127604), (50, 415563802), (100, 207781901), (167, 124420300), (334, 62210150), (668, 31105075), (835, 24884060), (1670, 12442030), (3340, 6221015), (4175, 4976812), (8350, 2488406), (16700, 1244203)]