20197220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^3\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 24678940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 83, 92, 115, 166, 230, 332, 415, 460, 529, 830, 1058, 1660, 1909, 2116, 2645, 3818, 5290, 7636, 9545, 10580, 12167, 19090, 24334, 38180, 43907, 48668, 60835, 87814, 121670, 175628, 219535, 243340, 439070, 878140, 1009861, 2019722, 4039444, 5049305, 10098610, 20197220]

約数ペア:

[(1, 20197220), (2, 10098610), (4, 5049305), (5, 4039444), (10, 2019722), (20, 1009861), (23, 878140), (46, 439070), (83, 243340), (92, 219535), (115, 175628), (166, 121670), (230, 87814), (332, 60835), (415, 48668), (460, 43907), (529, 38180), (830, 24334), (1058, 19090), (1660, 12167), (1909, 10580), (2116, 9545), (2645, 7636), (3818, 5290)]