18986950

素因数分解:

$2^1\times 5^2\times {\mathrm{499}}^1\times {\mathrm{761}}^1$

素因数の和:1272

約数の個数: 24

約数和(自身を含む): 35433000

約数和(自身を除く): 16446050

約数列:

[1, 2, 5, 10, 25, 50, 499, 761, 998, 1522, 2495, 3805, 4990, 7610, 12475, 19025, 24950, 38050, 379739, 759478, 1898695, 3797390, 9493475, 18986950]

約数ペア:

[(1, 18986950), (2, 9493475), (5, 3797390), (10, 1898695), (25, 759478), (50, 379739), (499, 38050), (761, 24950), (998, 19025), (1522, 12475), (2495, 7610), (3805, 4990)]