12841640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{45863}}^1$

素因数の和:45881

約数の個数: 32

約数和(自身を含む): 33022080

約数和(自身を除く): 20180440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 45863, 91726, 183452, 229315, 321041, 366904, 458630, 642082, 917260, 1284164, 1605205, 1834520, 2568328, 3210410, 6420820, 12841640]

約数ペア:

[(1, 12841640), (2, 6420820), (4, 3210410), (5, 2568328), (7, 1834520), (8, 1605205), (10, 1284164), (14, 917260), (20, 642082), (28, 458630), (35, 366904), (40, 321041), (56, 229315), (70, 183452), (140, 91726), (280, 45863)]