20178268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 40771584

約数和(自身を除く): 20593316

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 127, 157, 253, 254, 314, 506, 508, 628, 1012, 1397, 1727, 2794, 2921, 3454, 3611, 5588, 5842, 6908, 7222, 11684, 14444, 19939, 32131, 39721, 39878, 64262, 79442, 79756, 128524, 158884, 219329, 438658, 458597, 877316, 917194, 1834388, 5044567, 10089134, 20178268]

約数ペア:

[(1, 20178268), (2, 10089134), (4, 5044567), (11, 1834388), (22, 917194), (23, 877316), (44, 458597), (46, 438658), (92, 219329), (127, 158884), (157, 128524), (253, 79756), (254, 79442), (314, 64262), (506, 39878), (508, 39721), (628, 32131), (1012, 19939), (1397, 14444), (1727, 11684), (2794, 7222), (2921, 6908), (3454, 5842), (3611, 5588)]