20128305

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{12541}}^1$

素因数の和:12656

約数の個数: 16

約数和(自身を含む): 32508864

約数和(自身を除く): 12380559

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 12541, 37623, 62705, 188115, 1341887, 4025661, 6709435, 20128305]

約数ペア:

[(1, 20128305), (3, 6709435), (5, 4025661), (15, 1341887), (107, 188115), (321, 62705), (535, 37623), (1605, 12541)]