20008465

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 24494400

約数和(自身を除く): 4485935

約数列:

[1, 5, 107, 149, 251, 535, 745, 1255, 15943, 26857, 37399, 79715, 134285, 186995, 4001693, 20008465]

約数ペア:

[(1, 20008465), (5, 4001693), (107, 186995), (149, 134285), (251, 79715), (535, 37399), (745, 26857), (1255, 15943)]