28361185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 38257920

約数和(自身を除く): 9896735

約数列:

[1, 5, 17, 23, 85, 89, 115, 163, 391, 445, 815, 1513, 1955, 2047, 2771, 3749, 7565, 10235, 13855, 14507, 18745, 34799, 63733, 72535, 173995, 246619, 318665, 333661, 1233095, 1668305, 5672237, 28361185]

約数ペア:

[(1, 28361185), (5, 5672237), (17, 1668305), (23, 1233095), (85, 333661), (89, 318665), (115, 246619), (163, 173995), (391, 72535), (445, 63733), (815, 34799), (1513, 18745), (1955, 14507), (2047, 13855), (2771, 10235), (3749, 7565)]