20439370

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 23624630

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 59, 70, 98, 101, 118, 202, 245, 295, 343, 413, 490, 505, 590, 686, 707, 826, 1010, 1414, 1715, 2065, 2891, 3430, 3535, 4130, 4949, 5782, 5959, 7070, 9898, 11918, 14455, 20237, 24745, 28910, 29795, 34643, 40474, 41713, 49490, 59590, 69286, 83426, 101185, 173215, 202370, 208565, 291991, 346430, 417130, 583982, 1459955, 2043937, 2919910, 4087874, 10219685, 20439370]

約数ペア:

[(1, 20439370), (2, 10219685), (5, 4087874), (7, 2919910), (10, 2043937), (14, 1459955), (35, 583982), (49, 417130), (59, 346430), (70, 291991), (98, 208565), (101, 202370), (118, 173215), (202, 101185), (245, 83426), (295, 69286), (343, 59590), (413, 49490), (490, 41713), (505, 40474), (590, 34643), (686, 29795), (707, 28910), (826, 24745), (1010, 20237), (1414, 14455), (1715, 11918), (2065, 9898), (2891, 7070), (3430, 5959), (3535, 5782), (4130, 4949)]