11187760

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1283}}^1$

素因数の和:1405

約数の個数: 40

約数和(自身を含む): 26270640

約数和(自身を除く): 15082880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1283, 1744, 2180, 2566, 4360, 5132, 6415, 8720, 10264, 12830, 20528, 25660, 51320, 102640, 139847, 279694, 559388, 699235, 1118776, 1398470, 2237552, 2796940, 5593880, 11187760]

約数ペア:

[(1, 11187760), (2, 5593880), (4, 2796940), (5, 2237552), (8, 1398470), (10, 1118776), (16, 699235), (20, 559388), (40, 279694), (80, 139847), (109, 102640), (218, 51320), (436, 25660), (545, 20528), (872, 12830), (1090, 10264), (1283, 8720), (1744, 6415), (2180, 5132), (2566, 4360)]