9151640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2099}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 20790000

約数和(自身を除く): 11638360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2099, 2180, 4198, 4360, 8396, 10495, 16792, 20990, 41980, 83960, 228791, 457582, 915164, 1143955, 1830328, 2287910, 4575820, 9151640]

約数ペア:

[(1, 9151640), (2, 4575820), (4, 2287910), (5, 1830328), (8, 1143955), (10, 915164), (20, 457582), (40, 228791), (109, 83960), (218, 41980), (436, 20990), (545, 16792), (872, 10495), (1090, 8396), (2099, 4360), (2180, 4198)]