17980940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{39089}}^1$

素因数の和:39121

約数の個数: 24

約数和(自身を含む): 39402720

約数和(自身を除く): 21421780

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 39089, 78178, 156356, 195445, 390890, 781780, 899047, 1798094, 3596188, 4495235, 8990470, 17980940]

約数ペア:

[(1, 17980940), (2, 8990470), (4, 4495235), (5, 3596188), (10, 1798094), (20, 899047), (23, 781780), (46, 390890), (92, 195445), (115, 156356), (230, 78178), (460, 39089)]