2080771640

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{102199}}^1$

素因数の和:102719

約数の個数: 32

約数和(自身を含む): 4690980000

約数和(自身を除く): 2610208360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 20360, 102199, 204398, 408796, 510995, 817592, 1021990, 2043980, 4087960, 52019291, 104038582, 208077164, 260096455, 416154328, 520192910, 1040385820, 2080771640]

約数ペア:

[(1, 2080771640), (2, 1040385820), (4, 520192910), (5, 416154328), (8, 260096455), (10, 208077164), (20, 104038582), (40, 52019291), (509, 4087960), (1018, 2043980), (2036, 1021990), (2545, 817592), (4072, 510995), (5090, 408796), (10180, 204398), (20360, 102199)]