400000018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{10313}}^1$

素因数の和:10410

約数の個数: 32

約数和(自身を含む): 686169792

約数和(自身を除く): 286169774

約数列:

[1, 2, 11, 22, 41, 43, 82, 86, 451, 473, 902, 946, 1763, 3526, 10313, 19393, 20626, 38786, 113443, 226886, 422833, 443459, 845666, 886918, 4651163, 4878049, 9302326, 9756098, 18181819, 36363638, 200000009, 400000018]

約数ペア:

[(1, 400000018), (2, 200000009), (11, 36363638), (22, 18181819), (41, 9756098), (43, 9302326), (82, 4878049), (86, 4651163), (451, 886918), (473, 845666), (902, 443459), (946, 422833), (1763, 226886), (3526, 113443), (10313, 38786), (19393, 20626)]