289289840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{516589}}^1$

素因数の和:516609

約数の個数: 40

約数和(自身を含む): 768685920

約数和(自身を除く): 479396080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 516589, 1033178, 2066356, 2582945, 3616123, 4132712, 5165890, 7232246, 8265424, 10331780, 14464492, 18080615, 20663560, 28928984, 36161230, 41327120, 57857968, 72322460, 144644920, 289289840]

約数ペア:

[(1, 289289840), (2, 144644920), (4, 72322460), (5, 57857968), (7, 41327120), (8, 36161230), (10, 28928984), (14, 20663560), (16, 18080615), (20, 14464492), (28, 10331780), (35, 8265424), (40, 7232246), (56, 5165890), (70, 4132712), (80, 3616123), (112, 2582945), (140, 2066356), (280, 1033178), (560, 516589)]