339965780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{220757}}^1$

素因数の和:220784

約数の個数: 48

約数和(自身を含む): 890096256

約数和(自身を除く): 550130476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 220757, 441514, 883028, 1103785, 1545299, 2207570, 2428327, 3090598, 4415140, 4856654, 6181196, 7726495, 9713308, 12141635, 15452990, 16998289, 24283270, 30905980, 33996578, 48566540, 67993156, 84991445, 169982890, 339965780]

約数ペア:

[(1, 339965780), (2, 169982890), (4, 84991445), (5, 67993156), (7, 48566540), (10, 33996578), (11, 30905980), (14, 24283270), (20, 16998289), (22, 15452990), (28, 12141635), (35, 9713308), (44, 7726495), (55, 6181196), (70, 4856654), (77, 4415140), (110, 3090598), (140, 2428327), (154, 2207570), (220, 1545299), (308, 1103785), (385, 883028), (770, 441514), (1540, 220757)]