20650877104

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{127123}}^1$

素因数の和:127226

約数の個数: 80

約数和(自身を含む): 47668449024

約数和(自身を除く): 27017571920

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 71, 88, 104, 142, 143, 176, 208, 284, 286, 568, 572, 781, 923, 1136, 1144, 1562, 1846, 2288, 3124, 3692, 6248, 7384, 10153, 12496, 14768, 20306, 40612, 81224, 127123, 162448, 254246, 508492, 1016984, 1398353, 1652599, 2033968, 2796706, 3305198, 5593412, 6610396, 9025733, 11186824, 13220792, 18051466, 18178589, 22373648, 26441584, 36102932, 36357178, 72205864, 72714356, 99283063, 117334529, 144411728, 145428712, 198566126, 234669058, 290857424, 397132252, 469338116, 794264504, 938676232, 1290679819, 1588529008, 1877352464, 2581359638, 5162719276, 10325438552, 20650877104]

約数ペア:

[(1, 20650877104), (2, 10325438552), (4, 5162719276), (8, 2581359638), (11, 1877352464), (13, 1588529008), (16, 1290679819), (22, 938676232), (26, 794264504), (44, 469338116), (52, 397132252), (71, 290857424), (88, 234669058), (104, 198566126), (142, 145428712), (143, 144411728), (176, 117334529), (208, 99283063), (284, 72714356), (286, 72205864), (568, 36357178), (572, 36102932), (781, 26441584), (923, 22373648), (1136, 18178589), (1144, 18051466), (1562, 13220792), (1846, 11186824), (2288, 9025733), (3124, 6610396), (3692, 5593412), (6248, 3305198), (7384, 2796706), (10153, 2033968), (12496, 1652599), (14768, 1398353), (20306, 1016984), (40612, 508492), (81224, 254246), (127123, 162448)]