51542140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1447}}^1$

素因数の和:1606

約数の個数: 48

約数和(自身を含む): 117496512

約数和(自身を除く): 65954372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 1370, 1447, 1781, 2740, 2894, 3562, 5788, 7124, 7235, 8905, 14470, 17810, 18811, 28940, 35620, 37622, 75244, 94055, 188110, 198239, 376220, 396478, 792956, 991195, 1982390, 2577107, 3964780, 5154214, 10308428, 12885535, 25771070, 51542140]

約数ペア:

[(1, 51542140), (2, 25771070), (4, 12885535), (5, 10308428), (10, 5154214), (13, 3964780), (20, 2577107), (26, 1982390), (52, 991195), (65, 792956), (130, 396478), (137, 376220), (260, 198239), (274, 188110), (548, 94055), (685, 75244), (1370, 37622), (1447, 35620), (1781, 28940), (2740, 18811), (2894, 17810), (3562, 14470), (5788, 8905), (7124, 7235)]