638377936

素因数分解:

$2^4\times 7^1\times {\mathrm{661}}^1\times {\mathrm{8623}}^1$

素因数の和:9299

約数の個数: 40

約数和(自身を含む): 1415853824

約数和(自身を除く): 777475888

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 661, 1322, 2644, 4627, 5288, 8623, 9254, 10576, 17246, 18508, 34492, 37016, 60361, 68984, 74032, 120722, 137968, 241444, 482888, 965776, 5699803, 11399606, 22799212, 39898621, 45598424, 79797242, 91196848, 159594484, 319188968, 638377936]

約数ペア:

[(1, 638377936), (2, 319188968), (4, 159594484), (7, 91196848), (8, 79797242), (14, 45598424), (16, 39898621), (28, 22799212), (56, 11399606), (112, 5699803), (661, 965776), (1322, 482888), (2644, 241444), (4627, 137968), (5288, 120722), (8623, 74032), (9254, 68984), (10576, 60361), (17246, 37016), (18508, 34492)]