1288368580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{757}}^1\times {\mathrm{1979}}^1$

素因数の和:2788

約数の個数: 48

約数和(自身を含む): 2773552320

約数和(自身を除く): 1485183740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 757, 860, 1514, 1979, 3028, 3785, 3958, 7570, 7916, 9895, 15140, 19790, 32551, 39580, 65102, 85097, 130204, 162755, 170194, 325510, 340388, 425485, 651020, 850970, 1498103, 1701940, 2996206, 5992412, 7490515, 14981030, 29962060, 64418429, 128836858, 257673716, 322092145, 644184290, 1288368580]

約数ペア:

[(1, 1288368580), (2, 644184290), (4, 322092145), (5, 257673716), (10, 128836858), (20, 64418429), (43, 29962060), (86, 14981030), (172, 7490515), (215, 5992412), (430, 2996206), (757, 1701940), (860, 1498103), (1514, 850970), (1979, 651020), (3028, 425485), (3785, 340388), (3958, 325510), (7570, 170194), (7916, 162755), (9895, 130204), (15140, 85097), (19790, 65102), (32551, 39580)]