1389555

素因数分解:

$3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:137

約数の個数: 40

約数和(自身を含む): 2578752

約数和(自身を除く): 1189197

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 73, 81, 135, 141, 219, 235, 365, 405, 423, 657, 705, 1095, 1269, 1971, 2115, 3285, 3431, 3807, 5913, 6345, 9855, 10293, 17155, 19035, 29565, 30879, 51465, 92637, 154395, 277911, 463185, 1389555]

約数ペア:

[(1, 1389555), (3, 463185), (5, 277911), (9, 154395), (15, 92637), (27, 51465), (45, 30879), (47, 29565), (73, 19035), (81, 17155), (135, 10293), (141, 9855), (219, 6345), (235, 5913), (365, 3807), (405, 3431), (423, 3285), (657, 2115), (705, 1971), (1095, 1269)]