2113256440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1288571}}^1$

素因数の和:1288623

約数の個数: 32

約数和(自身を含む): 4870802160

約数和(自身を除く): 2757545720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1288571, 2577142, 5154284, 6442855, 10308568, 12885710, 25771420, 51542840, 52831411, 105662822, 211325644, 264157055, 422651288, 528314110, 1056628220, 2113256440]

約数ペア:

[(1, 2113256440), (2, 1056628220), (4, 528314110), (5, 422651288), (8, 264157055), (10, 211325644), (20, 105662822), (40, 52831411), (41, 51542840), (82, 25771420), (164, 12885710), (205, 10308568), (328, 6442855), (410, 5154284), (820, 2577142), (1640, 1288571)]