289101680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{516253}}^1$

素因数の和:516273

約数の個数: 40

約数和(自身を含む): 768185952

約数和(自身を除く): 479084272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 516253, 1032506, 2065012, 2581265, 3613771, 4130024, 5162530, 7227542, 8260048, 10325060, 14455084, 18068855, 20650120, 28910168, 36137710, 41300240, 57820336, 72275420, 144550840, 289101680]

約数ペア:

[(1, 289101680), (2, 144550840), (4, 72275420), (5, 57820336), (7, 41300240), (8, 36137710), (10, 28910168), (14, 20650120), (16, 18068855), (20, 14455084), (28, 10325060), (35, 8260048), (40, 7227542), (56, 5162530), (70, 4130024), (80, 3613771), (112, 2581265), (140, 2065012), (280, 1032506), (560, 516253)]