20803621025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1\times {\mathrm{3457}}^1$

素因数の和:3834

約数の個数: 48

約数和(自身を含む): 28609002240

約数和(自身を除く): 7805381215

約数列:

[1, 5, 11, 25, 55, 79, 275, 277, 395, 869, 1385, 1975, 3047, 3457, 4345, 6925, 15235, 17285, 21725, 21883, 38027, 76175, 86425, 109415, 190135, 240713, 273103, 547075, 950675, 957589, 1203565, 1365515, 3004133, 4787945, 6017825, 6827575, 10533479, 15020665, 23939725, 52667395, 75103325, 75649531, 263336975, 378247655, 832144841, 1891238275, 4160724205, 20803621025]

約数ペア:

[(1, 20803621025), (5, 4160724205), (11, 1891238275), (25, 832144841), (55, 378247655), (79, 263336975), (275, 75649531), (277, 75103325), (395, 52667395), (869, 23939725), (1385, 15020665), (1975, 10533479), (3047, 6827575), (3457, 6017825), (4345, 4787945), (6925, 3004133), (15235, 1365515), (17285, 1203565), (21725, 957589), (21883, 950675), (38027, 547075), (76175, 273103), (86425, 240713), (109415, 190135)]