28771640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6599}}^1$

素因数の和:6719

約数の個数: 32

約数和(自身を含む): 65340000

約数和(自身を除く): 36568360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6599, 13198, 26396, 32995, 52792, 65990, 131980, 263960, 719291, 1438582, 2877164, 3596455, 5754328, 7192910, 14385820, 28771640]

約数ペア:

[(1, 28771640), (2, 14385820), (4, 7192910), (5, 5754328), (8, 3596455), (10, 2877164), (20, 1438582), (40, 719291), (109, 263960), (218, 131980), (436, 65990), (545, 52792), (872, 32995), (1090, 26396), (2180, 13198), (4360, 6599)]