28724305

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{3797}}^1$

素因数の和:3908

約数の個数: 16

約数和(自身を含む): 36916560

約数和(自身を除く): 8192255

約数列:

[1, 5, 17, 85, 89, 445, 1513, 3797, 7565, 18985, 64549, 322745, 337933, 1689665, 5744861, 28724305]

約数ペア:

[(1, 28724305), (5, 5744861), (17, 1689665), (85, 337933), (89, 322745), (445, 64549), (1513, 18985), (3797, 7565)]