5171440

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:649

約数の個数: 40

約数和(自身を含む): 12142080

約数和(自身を除く): 6970640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 509, 635, 1016, 1018, 1270, 2032, 2036, 2540, 2545, 4072, 5080, 5090, 8144, 10160, 10180, 20360, 40720, 64643, 129286, 258572, 323215, 517144, 646430, 1034288, 1292860, 2585720, 5171440]

約数ペア:

[(1, 5171440), (2, 2585720), (4, 1292860), (5, 1034288), (8, 646430), (10, 517144), (16, 323215), (20, 258572), (40, 129286), (80, 64643), (127, 40720), (254, 20360), (508, 10180), (509, 10160), (635, 8144), (1016, 5090), (1018, 5080), (1270, 4072), (2032, 2545), (2036, 2540)]