1328891984

素因数分解:

$2^4\times 7^1\times {\mathrm{11865107}}^1$

素因数の和:11865122

約数の個数: 20

約数和(自身を含む): 2942546784

約数和(自身を除く): 1613654800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 11865107, 23730214, 47460428, 83055749, 94920856, 166111498, 189841712, 332222996, 664445992, 1328891984]

約数ペア:

[(1, 1328891984), (2, 664445992), (4, 332222996), (7, 189841712), (8, 166111498), (14, 94920856), (16, 83055749), (28, 47460428), (56, 23730214), (112, 11865107)]