20636660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4937}}^1$

素因数の和:4976

約数の個数: 48

約数和(自身を含む): 49775040

約数和(自身を除く): 29138380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4937, 9874, 19748, 24685, 49370, 54307, 93803, 98740, 108614, 187606, 217228, 271535, 375212, 469015, 543070, 938030, 1031833, 1086140, 1876060, 2063666, 4127332, 5159165, 10318330, 20636660]

約数ペア:

[(1, 20636660), (2, 10318330), (4, 5159165), (5, 4127332), (10, 2063666), (11, 1876060), (19, 1086140), (20, 1031833), (22, 938030), (38, 543070), (44, 469015), (55, 375212), (76, 271535), (95, 217228), (110, 187606), (190, 108614), (209, 98740), (220, 93803), (380, 54307), (418, 49370), (836, 24685), (1045, 19748), (2090, 9874), (4180, 4937)]