20171978260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{954209}}^1$

素因数の和:954376

約数の個数: 48

約数和(自身を含む): 48733413120

約数和(自身を除く): 28561434860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 1057, 1510, 2114, 3020, 4228, 5285, 10570, 21140, 954209, 1908418, 3816836, 4771045, 6679463, 9542090, 13358926, 19084180, 26717852, 33397315, 66794630, 133589260, 144085559, 288171118, 576342236, 720427795, 1008598913, 1440855590, 2017197826, 2881711180, 4034395652, 5042994565, 10085989130, 20171978260]

約数ペア:

[(1, 20171978260), (2, 10085989130), (4, 5042994565), (5, 4034395652), (7, 2881711180), (10, 2017197826), (14, 1440855590), (20, 1008598913), (28, 720427795), (35, 576342236), (70, 288171118), (140, 144085559), (151, 133589260), (302, 66794630), (604, 33397315), (755, 26717852), (1057, 19084180), (1510, 13358926), (2114, 9542090), (3020, 6679463), (4228, 4771045), (5285, 3816836), (10570, 1908418), (21140, 954209)]