28190420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82913}}^1$

素因数の和:82939

約数の個数: 24

約数和(自身を含む): 62682984

約数和(自身を除く): 34492564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 82913, 165826, 331652, 414565, 829130, 1409521, 1658260, 2819042, 5638084, 7047605, 14095210, 28190420]

約数ペア:

[(1, 28190420), (2, 14095210), (4, 7047605), (5, 5638084), (10, 2819042), (17, 1658260), (20, 1409521), (34, 829130), (68, 414565), (85, 331652), (170, 165826), (340, 82913)]