20087438960

素因数分解:

$2^4\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{222403}}^1$

素因数の和:223545

約数の個数: 40

約数和(自身を含む): 46744872720

約数和(自身を除く): 26657433760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1129, 2258, 4516, 5645, 9032, 11290, 18064, 22580, 45160, 90320, 222403, 444806, 889612, 1112015, 1779224, 2224030, 3558448, 4448060, 8896120, 17792240, 251092987, 502185974, 1004371948, 1255464935, 2008743896, 2510929870, 4017487792, 5021859740, 10043719480, 20087438960]

約数ペア:

[(1, 20087438960), (2, 10043719480), (4, 5021859740), (5, 4017487792), (8, 2510929870), (10, 2008743896), (16, 1255464935), (20, 1004371948), (40, 502185974), (80, 251092987), (1129, 17792240), (2258, 8896120), (4516, 4448060), (5645, 3558448), (9032, 2224030), (11290, 1779224), (18064, 1112015), (22580, 889612), (45160, 444806), (90320, 222403)]