18738620

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1033}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 39432624

約数和(自身を除く): 20694004

約数列:

[1, 2, 4, 5, 10, 20, 907, 1033, 1814, 2066, 3628, 4132, 4535, 5165, 9070, 10330, 18140, 20660, 936931, 1873862, 3747724, 4684655, 9369310, 18738620]

約数ペア:

[(1, 18738620), (2, 9369310), (4, 4684655), (5, 3747724), (10, 1873862), (20, 936931), (907, 20660), (1033, 18140), (1814, 10330), (2066, 9070), (3628, 5165), (4132, 4535)]