289401880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{425591}}^1$

素因数の和:425619

約数の個数: 32

約数和(自身を含む): 689459040

約数和(自身を除く): 400057160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 425591, 851182, 1702364, 2127955, 3404728, 4255910, 7235047, 8511820, 14470094, 17023640, 28940188, 36175235, 57880376, 72350470, 144700940, 289401880]

約数ペア:

[(1, 289401880), (2, 144700940), (4, 72350470), (5, 57880376), (8, 36175235), (10, 28940188), (17, 17023640), (20, 14470094), (34, 8511820), (40, 7235047), (68, 4255910), (85, 3404728), (136, 2127955), (170, 1702364), (340, 851182), (680, 425591)]