28198325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1543}}^1$

素因数の和:1613

約数の個数: 24

約数和(自身を含む): 37908288

約数和(自身を除く): 9709963

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 1543, 3655, 7715, 18275, 26231, 38575, 66349, 131155, 331745, 655775, 1127933, 1658725, 5639665, 28198325]

約数ペア:

[(1, 28198325), (5, 5639665), (17, 1658725), (25, 1127933), (43, 655775), (85, 331745), (215, 131155), (425, 66349), (731, 38575), (1075, 26231), (1543, 18275), (3655, 7715)]