289202480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{516433}}^1$

素因数の和:516453

約数の個数: 40

約数和(自身を含む): 768453792

約数和(自身を除く): 479251312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 516433, 1032866, 2065732, 2582165, 3615031, 4131464, 5164330, 7230062, 8262928, 10328660, 14460124, 18075155, 20657320, 28920248, 36150310, 41314640, 57840496, 72300620, 144601240, 289202480]

約数ペア:

[(1, 289202480), (2, 144601240), (4, 72300620), (5, 57840496), (7, 41314640), (8, 36150310), (10, 28920248), (14, 20657320), (16, 18075155), (20, 14460124), (28, 10328660), (35, 8262928), (40, 7230062), (56, 5164330), (70, 4131464), (80, 3615031), (112, 2582165), (140, 2065732), (280, 1032866), (560, 516433)]