639804574

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{44623}}^1$

素因数の和:44799

約数の個数: 16

約数和(自身を含む): 983155968

約数和(自身を除く): 343351394

約数列:

[1, 2, 67, 107, 134, 214, 7169, 14338, 44623, 89246, 2989741, 4774661, 5979482, 9549322, 319902287, 639804574]

約数ペア:

[(1, 639804574), (2, 319902287), (67, 9549322), (107, 5979482), (134, 4774661), (214, 2989741), (7169, 89246), (14338, 44623)]