263960255

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 370772640

約数和(自身を除く): 106812385

約数列:

[1, 5, 13, 19, 41, 65, 95, 169, 205, 247, 401, 533, 779, 845, 1235, 2005, 2665, 3211, 3895, 5213, 6929, 7619, 10127, 16055, 16441, 26065, 34645, 38095, 50635, 67769, 82205, 99047, 131651, 213733, 312379, 338845, 495235, 658255, 1068665, 1287611, 1561895, 2778529, 4060927, 6438055, 13892645, 20304635, 52792051, 263960255]

約数ペア:

[(1, 263960255), (5, 52792051), (13, 20304635), (19, 13892645), (41, 6438055), (65, 4060927), (95, 2778529), (169, 1561895), (205, 1287611), (247, 1068665), (401, 658255), (533, 495235), (779, 338845), (845, 312379), (1235, 213733), (2005, 131651), (2665, 99047), (3211, 82205), (3895, 67769), (5213, 50635), (6929, 38095), (7619, 34645), (10127, 26065), (16055, 16441)]