1980975

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 3336592

約数和(自身を除く): 1355617

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 305, 433, 915, 1299, 1525, 2165, 4575, 6495, 10825, 26413, 32475, 79239, 132065, 396195, 660325, 1980975]

約数ペア:

[(1, 1980975), (3, 660325), (5, 396195), (15, 132065), (25, 79239), (61, 32475), (75, 26413), (183, 10825), (305, 6495), (433, 4575), (915, 2165), (1299, 1525)]