20549464

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 44906400

約数和(自身を除く): 24356936

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 59, 68, 104, 118, 136, 197, 221, 236, 394, 442, 472, 767, 788, 884, 1003, 1534, 1576, 1768, 2006, 2561, 3068, 3349, 4012, 5122, 6136, 6698, 8024, 10244, 11623, 13039, 13396, 20488, 23246, 26078, 26792, 43537, 46492, 52156, 87074, 92984, 104312, 151099, 174148, 197591, 302198, 348296, 395182, 604396, 790364, 1208792, 1580728, 2568683, 5137366, 10274732, 20549464]

約数ペア:

[(1, 20549464), (2, 10274732), (4, 5137366), (8, 2568683), (13, 1580728), (17, 1208792), (26, 790364), (34, 604396), (52, 395182), (59, 348296), (68, 302198), (104, 197591), (118, 174148), (136, 151099), (197, 104312), (221, 92984), (236, 87074), (394, 52156), (442, 46492), (472, 43537), (767, 26792), (788, 26078), (884, 23246), (1003, 20488), (1534, 13396), (1576, 13039), (1768, 11623), (2006, 10244), (2561, 8024), (3068, 6698), (3349, 6136), (4012, 5122)]