280647560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{412717}}^1$

素因数の和:412745

約数の個数: 32

約数和(自身を含む): 668603160

約数和(自身を除く): 387955600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 412717, 825434, 1650868, 2063585, 3301736, 4127170, 7016189, 8254340, 14032378, 16508680, 28064756, 35080945, 56129512, 70161890, 140323780, 280647560]

約数ペア:

[(1, 280647560), (2, 140323780), (4, 70161890), (5, 56129512), (8, 35080945), (10, 28064756), (17, 16508680), (20, 14032378), (34, 8254340), (40, 7016189), (68, 4127170), (85, 3301736), (136, 2063585), (170, 1650868), (340, 825434), (680, 412717)]