18090788

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 35925120

約数和(自身を除く): 17834332

約数列:

[1, 2, 4, 17, 23, 34, 43, 46, 68, 86, 92, 172, 269, 391, 538, 731, 782, 989, 1076, 1462, 1564, 1978, 2924, 3956, 4573, 6187, 9146, 11567, 12374, 16813, 18292, 23134, 24748, 33626, 46268, 67252, 105179, 196639, 210358, 266041, 393278, 420716, 532082, 786556, 1064164, 4522697, 9045394, 18090788]

約数ペア:

[(1, 18090788), (2, 9045394), (4, 4522697), (17, 1064164), (23, 786556), (34, 532082), (43, 420716), (46, 393278), (68, 266041), (86, 210358), (92, 196639), (172, 105179), (269, 67252), (391, 46268), (538, 33626), (731, 24748), (782, 23134), (989, 18292), (1076, 16813), (1462, 12374), (1564, 11567), (1978, 9146), (2924, 6187), (3956, 4573)]