20043560

素因数分解:

$2^3\times 5^1\times {\mathrm{501089}}^1$

素因数の和:501100

約数の個数: 16

約数和(自身を含む): 45098100

約数和(自身を除く): 25054540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 501089, 1002178, 2004356, 2505445, 4008712, 5010890, 10021780, 20043560]

約数ペア:

[(1, 20043560), (2, 10021780), (4, 5010890), (5, 4008712), (8, 2505445), (10, 2004356), (20, 1002178), (40, 501089)]