20468990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66029}}^1$

素因数の和:66067

約数の個数: 16

約数和(自身を含む): 38033280

約数和(自身を除く): 17564290

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 66029, 132058, 330145, 660290, 2046899, 4093798, 10234495, 20468990]

約数ペア:

[(1, 20468990), (2, 10234495), (5, 4093798), (10, 2046899), (31, 660290), (62, 330145), (155, 132058), (310, 66029)]