2489990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 4826304

約数和(自身を除く): 2336314

約数列:

[1, 2, 5, 10, 17, 34, 85, 97, 151, 170, 194, 302, 485, 755, 970, 1510, 1649, 2567, 3298, 5134, 8245, 12835, 14647, 16490, 25670, 29294, 73235, 146470, 248999, 497998, 1244995, 2489990]

約数ペア:

[(1, 2489990), (2, 1244995), (5, 497998), (10, 248999), (17, 146470), (34, 73235), (85, 29294), (97, 25670), (151, 16490), (170, 14647), (194, 12835), (302, 8245), (485, 5134), (755, 3298), (970, 2567), (1510, 1649)]