320997616

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{328891}}^1$

素因数の和:328960

約数の個数: 20

約数和(自身を含む): 632130424

約数和(自身を除く): 311132808

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 328891, 657782, 1315564, 2631128, 5262256, 20062351, 40124702, 80249404, 160498808, 320997616]

約数ペア:

[(1, 320997616), (2, 160498808), (4, 80249404), (8, 40124702), (16, 20062351), (61, 5262256), (122, 2631128), (244, 1315564), (488, 657782), (976, 328891)]