291204620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{2129}}^1$

素因数の和:3122

約数の個数: 48

約数和(自身を含む): 699935040

約数和(自身を除く): 408730420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 977, 1954, 2129, 3908, 4258, 4885, 6839, 8516, 9770, 10645, 13678, 14903, 19540, 21290, 27356, 29806, 34195, 42580, 59612, 68390, 74515, 136780, 149030, 298060, 2080033, 4160066, 8320132, 10400165, 14560231, 20800330, 29120462, 41600660, 58240924, 72801155, 145602310, 291204620]

約数ペア:

[(1, 291204620), (2, 145602310), (4, 72801155), (5, 58240924), (7, 41600660), (10, 29120462), (14, 20800330), (20, 14560231), (28, 10400165), (35, 8320132), (70, 4160066), (140, 2080033), (977, 298060), (1954, 149030), (2129, 136780), (3908, 74515), (4258, 68390), (4885, 59612), (6839, 42580), (8516, 34195), (9770, 29806), (10645, 27356), (13678, 21290), (14903, 19540)]