18031460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 39567360

約数和(自身を除く): 21535900

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 229, 254, 310, 458, 508, 620, 635, 916, 1145, 1270, 2290, 2540, 3937, 4580, 7099, 7874, 14198, 15748, 19685, 28396, 29083, 35495, 39370, 58166, 70990, 78740, 116332, 141980, 145415, 290830, 581660, 901573, 1803146, 3606292, 4507865, 9015730, 18031460]

約数ペア:

[(1, 18031460), (2, 9015730), (4, 4507865), (5, 3606292), (10, 1803146), (20, 901573), (31, 581660), (62, 290830), (124, 145415), (127, 141980), (155, 116332), (229, 78740), (254, 70990), (310, 58166), (458, 39370), (508, 35495), (620, 29083), (635, 28396), (916, 19685), (1145, 15748), (1270, 14198), (2290, 7874), (2540, 7099), (3937, 4580)]