90209378

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{19949}}^1$

素因数の和:19994

約数の個数: 32

約数和(自身を含む): 172368000

約数和(自身を除く): 82158622

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4522, 19949, 39898, 139643, 279286, 339133, 379031, 678266, 758062, 2373931, 2653217, 4747862, 5306434, 6443527, 12887054, 45104689, 90209378]

約数ペア:

[(1, 90209378), (2, 45104689), (7, 12887054), (14, 6443527), (17, 5306434), (19, 4747862), (34, 2653217), (38, 2373931), (119, 758062), (133, 678266), (238, 379031), (266, 339133), (323, 279286), (646, 139643), (2261, 39898), (4522, 19949)]