20026465

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2749}}^1$

素因数の和:2832

約数の個数: 16

約数和(自身を含む): 25344000

約数和(自身を除く): 5317535

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2749, 7285, 13745, 85219, 129203, 426095, 646015, 4005293, 20026465]

約数ペア:

[(1, 20026465), (5, 4005293), (31, 646015), (47, 426095), (155, 129203), (235, 85219), (1457, 13745), (2749, 7285)]