28839645

素因数分解:

$3^4\times 5^1\times {\mathrm{71209}}^1$

素因数の和:71226

約数の個数: 20

約数和(自身を含む): 51698460

約数和(自身を除く): 22858815

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71209, 213627, 356045, 640881, 1068135, 1922643, 3204405, 5767929, 9613215, 28839645]

約数ペア:

[(1, 28839645), (3, 9613215), (5, 5767929), (9, 3204405), (15, 1922643), (27, 1068135), (45, 640881), (81, 356045), (135, 213627), (405, 71209)]