20341388485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{263609}}^1$

素因数の和:263709

約数の個数: 32

約数和(自身を含む): 28242120960

約数和(自身を除く): 7900732475

約数列:

[1, 5, 11, 23, 55, 61, 115, 253, 305, 671, 1265, 1403, 3355, 7015, 15433, 77165, 263609, 1318045, 2899699, 6063007, 14498495, 16080149, 30315035, 66693077, 80400745, 176881639, 333465385, 369843427, 884408195, 1849217135, 4068277697, 20341388485]

約数ペア:

[(1, 20341388485), (5, 4068277697), (11, 1849217135), (23, 884408195), (55, 369843427), (61, 333465385), (115, 176881639), (253, 80400745), (305, 66693077), (671, 30315035), (1265, 16080149), (1403, 14498495), (3355, 6063007), (7015, 2899699), (15433, 1318045), (77165, 263609)]