1606780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 4032000

約数和(自身を除く): 2425220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 499, 644, 805, 998, 1610, 1996, 2495, 3220, 3493, 4990, 6986, 9980, 11477, 13972, 17465, 22954, 34930, 45908, 57385, 69860, 80339, 114770, 160678, 229540, 321356, 401695, 803390, 1606780]

約数ペア:

[(1, 1606780), (2, 803390), (4, 401695), (5, 321356), (7, 229540), (10, 160678), (14, 114770), (20, 80339), (23, 69860), (28, 57385), (35, 45908), (46, 34930), (70, 22954), (92, 17465), (115, 13972), (140, 11477), (161, 9980), (230, 6986), (322, 4990), (460, 3493), (499, 3220), (644, 2495), (805, 1996), (998, 1610)]