12895775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 17833680

約数和(自身を除く): 4937905

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1597, 1615, 7985, 8075, 27149, 30343, 39925, 135745, 151715, 515831, 678725, 758575, 2579155, 12895775]

約数ペア:

[(1, 12895775), (5, 2579155), (17, 758575), (19, 678725), (25, 515831), (85, 151715), (95, 135745), (323, 39925), (425, 30343), (475, 27149), (1597, 8075), (1615, 7985)]