39218740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2003}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 90901440

約数和(自身を除く): 51682700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 2003, 3916, 4006, 4895, 8012, 9790, 10015, 19580, 20030, 22033, 40060, 44066, 88132, 110165, 178267, 220330, 356534, 440660, 713068, 891335, 1782670, 1960937, 3565340, 3921874, 7843748, 9804685, 19609370, 39218740]

約数ペア:

[(1, 39218740), (2, 19609370), (4, 9804685), (5, 7843748), (10, 3921874), (11, 3565340), (20, 1960937), (22, 1782670), (44, 891335), (55, 713068), (89, 440660), (110, 356534), (178, 220330), (220, 178267), (356, 110165), (445, 88132), (890, 44066), (979, 40060), (1780, 22033), (1958, 20030), (2003, 19580), (3916, 10015), (4006, 9790), (4895, 8012)]