18388220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54083}}^1$

素因数の和:54109

約数の個数: 24

約数和(自身を含む): 40887504

約数和(自身を除く): 22499284

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54083, 108166, 216332, 270415, 540830, 919411, 1081660, 1838822, 3677644, 4597055, 9194110, 18388220]

約数ペア:

[(1, 18388220), (2, 9194110), (4, 4597055), (5, 3677644), (10, 1838822), (17, 1081660), (20, 919411), (34, 540830), (68, 270415), (85, 216332), (170, 108166), (340, 54083)]