18691040

素因数分解:

$2^5\times 5^1\times {\mathrm{116819}}^1$

素因数の和:116834

約数の個数: 24

約数和(自身を含む): 44157960

約数和(自身を除く): 25466920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 116819, 233638, 467276, 584095, 934552, 1168190, 1869104, 2336380, 3738208, 4672760, 9345520, 18691040]

約数ペア:

[(1, 18691040), (2, 9345520), (4, 4672760), (5, 3738208), (8, 2336380), (10, 1869104), (16, 1168190), (20, 934552), (32, 584095), (40, 467276), (80, 233638), (160, 116819)]