20810065

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{641}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 25762176

約数和(自身を除く): 4952111

約数列:

[1, 5, 43, 151, 215, 641, 755, 3205, 6493, 27563, 32465, 96791, 137815, 483955, 4162013, 20810065]

約数ペア:

[(1, 20810065), (5, 4162013), (43, 483955), (151, 137815), (215, 96791), (641, 32465), (755, 27563), (3205, 6493)]