199908075

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61987}}^1$

素因数の和:62043

約数の個数: 24

約数和(自身を含む): 338206528

約数和(自身を除く): 138298453

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 61987, 185961, 309935, 929805, 1549675, 2665441, 4649025, 7996323, 13327205, 39981615, 66636025, 199908075]

約数ペア:

[(1, 199908075), (3, 66636025), (5, 39981615), (15, 13327205), (25, 7996323), (43, 4649025), (75, 2665441), (129, 1549675), (215, 929805), (645, 309935), (1075, 185961), (3225, 61987)]