20406968500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^2\times {\mathrm{77153}}^1$

素因数の和:77218

約数の個数: 72

約数和(自身を含む): 46591448904

約数和(自身を除く): 26184480404

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 460, 500, 529, 575, 1058, 1150, 2116, 2300, 2645, 2875, 5290, 5750, 10580, 11500, 13225, 26450, 52900, 66125, 77153, 132250, 154306, 264500, 308612, 385765, 771530, 1543060, 1774519, 1928825, 3549038, 3857650, 7098076, 7715300, 8872595, 9644125, 17745190, 19288250, 35490380, 38576500, 40813937, 44362975, 81627874, 88725950, 163255748, 177451900, 204069685, 221814875, 408139370, 443629750, 816278740, 887259500, 1020348425, 2040696850, 4081393700, 5101742125, 10203484250, 20406968500]

約数ペア:

[(1, 20406968500), (2, 10203484250), (4, 5101742125), (5, 4081393700), (10, 2040696850), (20, 1020348425), (23, 887259500), (25, 816278740), (46, 443629750), (50, 408139370), (92, 221814875), (100, 204069685), (115, 177451900), (125, 163255748), (230, 88725950), (250, 81627874), (460, 44362975), (500, 40813937), (529, 38576500), (575, 35490380), (1058, 19288250), (1150, 17745190), (2116, 9644125), (2300, 8872595), (2645, 7715300), (2875, 7098076), (5290, 3857650), (5750, 3549038), (10580, 1928825), (11500, 1774519), (13225, 1543060), (26450, 771530), (52900, 385765), (66125, 308612), (77153, 264500), (132250, 154306)]