20380724

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 45501120

約数和(自身を除く): 25120396

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 59, 73, 91, 118, 146, 169, 182, 236, 292, 338, 364, 413, 511, 676, 767, 826, 949, 1022, 1183, 1534, 1652, 1898, 2044, 2366, 3068, 3796, 4307, 4732, 5369, 6643, 8614, 9971, 10738, 12337, 13286, 17228, 19942, 21476, 24674, 26572, 30149, 39884, 49348, 55991, 60298, 69797, 86359, 111982, 120596, 139594, 172718, 223964, 279188, 345436, 391937, 727883, 783874, 1455766, 1567748, 2911532, 5095181, 10190362, 20380724]

約数ペア:

[(1, 20380724), (2, 10190362), (4, 5095181), (7, 2911532), (13, 1567748), (14, 1455766), (26, 783874), (28, 727883), (52, 391937), (59, 345436), (73, 279188), (91, 223964), (118, 172718), (146, 139594), (169, 120596), (182, 111982), (236, 86359), (292, 69797), (338, 60298), (364, 55991), (413, 49348), (511, 39884), (676, 30149), (767, 26572), (826, 24674), (949, 21476), (1022, 19942), (1183, 17228), (1534, 13286), (1652, 12337), (1898, 10738), (2044, 9971), (2366, 8614), (3068, 6643), (3796, 5369), (4307, 4732)]