2784781160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{9945647}}^1$

素因数の和:9945665

約数の個数: 32

約数和(自身を含む): 7160866560

約数和(自身を除く): 4376085400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 9945647, 19891294, 39782588, 49728235, 69619529, 79565176, 99456470, 139239058, 198912940, 278478116, 348097645, 397825880, 556956232, 696195290, 1392390580, 2784781160]

約数ペア:

[(1, 2784781160), (2, 1392390580), (4, 696195290), (5, 556956232), (7, 397825880), (8, 348097645), (10, 278478116), (14, 198912940), (20, 139239058), (28, 99456470), (35, 79565176), (40, 69619529), (56, 49728235), (70, 39782588), (140, 19891294), (280, 9945647)]