18058990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 33359040

約数和(自身を除く): 15300050

約数列:

[1, 2, 5, 10, 89, 103, 178, 197, 206, 394, 445, 515, 890, 985, 1030, 1970, 9167, 17533, 18334, 20291, 35066, 40582, 45835, 87665, 91670, 101455, 175330, 202910, 1805899, 3611798, 9029495, 18058990]

約数ペア:

[(1, 18058990), (2, 9029495), (5, 3611798), (10, 1805899), (89, 202910), (103, 175330), (178, 101455), (197, 91670), (206, 87665), (394, 45835), (445, 40582), (515, 35066), (890, 20291), (985, 18334), (1030, 17533), (1970, 9167)]