20246680

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1153}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 45698400

約数和(自身を除く): 25451720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1153, 1756, 2195, 2306, 3512, 4390, 4612, 5765, 8780, 9224, 11530, 17560, 23060, 46120, 506167, 1012334, 2024668, 2530835, 4049336, 5061670, 10123340, 20246680]

約数ペア:

[(1, 20246680), (2, 10123340), (4, 5061670), (5, 4049336), (8, 2530835), (10, 2024668), (20, 1012334), (40, 506167), (439, 46120), (878, 23060), (1153, 17560), (1756, 11530), (2195, 9224), (2306, 8780), (3512, 5765), (4390, 4612)]