200720445

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{787139}}^1$

素因数の和:787164

約数の個数: 16

約数和(自身を含む): 340044480

約数和(自身を除く): 139324035

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 787139, 2361417, 3935695, 11807085, 13381363, 40144089, 66906815, 200720445]

約数ペア:

[(1, 200720445), (3, 66906815), (5, 40144089), (15, 13381363), (17, 11807085), (51, 3935695), (85, 2361417), (255, 787139)]