19847725

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 25916000

約数和(自身を除く): 6068275

約数列:

[1, 5, 25, 37, 43, 185, 215, 499, 925, 1075, 1591, 2495, 7955, 12475, 18463, 21457, 39775, 92315, 107285, 461575, 536425, 793909, 3969545, 19847725]

約数ペア:

[(1, 19847725), (5, 3969545), (25, 793909), (37, 536425), (43, 461575), (185, 107285), (215, 92315), (499, 39775), (925, 21457), (1075, 18463), (1591, 12475), (2495, 7955)]