261553448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{2617}}^1$

素因数の和:2698

約数の個数: 48

約数和(自身を含む): 545931540

約数和(自身を除く): 284378092

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 961, 1612, 1922, 2617, 3224, 3844, 5234, 7688, 10468, 12493, 20936, 24986, 34021, 49972, 68042, 81127, 99944, 136084, 162254, 272168, 324508, 649016, 1054651, 2109302, 2514937, 4218604, 5029874, 8437208, 10059748, 20119496, 32694181, 65388362, 130776724, 261553448]

約数ペア:

[(1, 261553448), (2, 130776724), (4, 65388362), (8, 32694181), (13, 20119496), (26, 10059748), (31, 8437208), (52, 5029874), (62, 4218604), (104, 2514937), (124, 2109302), (248, 1054651), (403, 649016), (806, 324508), (961, 272168), (1612, 162254), (1922, 136084), (2617, 99944), (3224, 81127), (3844, 68042), (5234, 49972), (7688, 34021), (10468, 24986), (12493, 20936)]