20768330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{523}}^1$

素因数の和:579

約数の個数: 48

約数和(自身を含む): 43123104

約数和(自身を除く): 22354774

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 361, 418, 523, 722, 1045, 1046, 1805, 2090, 2615, 3610, 3971, 5230, 5753, 7942, 9937, 11506, 19855, 19874, 28765, 39710, 49685, 57530, 99370, 109307, 188803, 218614, 377606, 546535, 944015, 1093070, 1888030, 2076833, 4153666, 10384165, 20768330]

約数ペア:

[(1, 20768330), (2, 10384165), (5, 4153666), (10, 2076833), (11, 1888030), (19, 1093070), (22, 944015), (38, 546535), (55, 377606), (95, 218614), (110, 188803), (190, 109307), (209, 99370), (361, 57530), (418, 49685), (523, 39710), (722, 28765), (1045, 19874), (1046, 19855), (1805, 11506), (2090, 9937), (2615, 7942), (3610, 5753), (3971, 5230)]