209084275

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:760

約数の個数: 36

約数和(自身を含む): 282236152

約数和(自身を除く): 73151877

約数列:

[1, 5, 17, 25, 43, 85, 215, 289, 425, 673, 731, 1075, 1445, 3365, 3655, 7225, 11441, 12427, 16825, 18275, 28939, 57205, 62135, 144695, 194497, 286025, 310675, 491963, 723475, 972485, 2459815, 4862425, 8363371, 12299075, 41816855, 209084275]

約数ペア:

[(1, 209084275), (5, 41816855), (17, 12299075), (25, 8363371), (43, 4862425), (85, 2459815), (215, 972485), (289, 723475), (425, 491963), (673, 310675), (731, 286025), (1075, 194497), (1445, 144695), (3365, 62135), (3655, 57205), (7225, 28939), (11441, 18275), (12427, 16825)]