664569836

素因数分解:

$2^2\times 7^1\times {\mathrm{1993}}^1\times {\mathrm{11909}}^1$

素因数の和:13913

約数の個数: 24

約数和(自身を含む): 1329918240

約数和(自身を除く): 665348404

約数列:

[1, 2, 4, 7, 14, 28, 1993, 3986, 7972, 11909, 13951, 23818, 27902, 47636, 55804, 83363, 166726, 333452, 23734637, 47469274, 94938548, 166142459, 332284918, 664569836]

約数ペア:

[(1, 664569836), (2, 332284918), (4, 166142459), (7, 94938548), (14, 47469274), (28, 23734637), (1993, 333452), (3986, 166726), (7972, 83363), (11909, 55804), (13951, 47636), (23818, 27902)]