20446672

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 41050944

約数和(自身を除く): 20604272

約数列:

[1, 2, 4, 8, 16, 43, 86, 113, 172, 226, 263, 344, 452, 526, 688, 904, 1052, 1808, 2104, 4208, 4859, 9718, 11309, 19436, 22618, 29719, 38872, 45236, 59438, 77744, 90472, 118876, 180944, 237752, 475504, 1277917, 2555834, 5111668, 10223336, 20446672]

約数ペア:

[(1, 20446672), (2, 10223336), (4, 5111668), (8, 2555834), (16, 1277917), (43, 475504), (86, 237752), (113, 180944), (172, 118876), (226, 90472), (263, 77744), (344, 59438), (452, 45236), (526, 38872), (688, 29719), (904, 22618), (1052, 19436), (1808, 11309), (2104, 9718), (4208, 4859)]