20647515155

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1\times {\mathrm{13591}}^1$

素因数の和:13967

約数の個数: 32

約数和(自身を含む): 26757537408

約数和(自身を除く): 6110022253

約数列:

[1, 5, 17, 61, 85, 293, 305, 1037, 1465, 4981, 5185, 13591, 17873, 24905, 67955, 89365, 231047, 303841, 829051, 1155235, 1519205, 3982163, 4145255, 14093867, 19910815, 67696771, 70469335, 242911943, 338483855, 1214559715, 4129503031, 20647515155]

約数ペア:

[(1, 20647515155), (5, 4129503031), (17, 1214559715), (61, 338483855), (85, 242911943), (293, 70469335), (305, 67696771), (1037, 19910815), (1465, 14093867), (4981, 4145255), (5185, 3982163), (13591, 1519205), (17873, 1155235), (24905, 829051), (67955, 303841), (89365, 231047)]