20121520265

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{629683}}^1$

素因数の和:629789

約数の個数: 32

約数和(自身を含む): 30466630656

約数和(自身を除く): 10345110391

約数列:

[1, 5, 7, 11, 35, 55, 77, 83, 385, 415, 581, 913, 2905, 4565, 6391, 31955, 629683, 3148415, 4407781, 6926513, 22038905, 34632565, 48485591, 52263689, 242427955, 261318445, 365845823, 574900579, 1829229115, 2874502895, 4024304053, 20121520265]

約数ペア:

[(1, 20121520265), (5, 4024304053), (7, 2874502895), (11, 1829229115), (35, 574900579), (55, 365845823), (77, 261318445), (83, 242427955), (385, 52263689), (415, 48485591), (581, 34632565), (913, 22038905), (2905, 6926513), (4565, 4407781), (6391, 3148415), (31955, 629683)]