28254005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{18899}}^1$

素因数の和:18940

約数の個数: 16

約数和(自身を含む): 38102400

約数和(自身を除く): 9848395

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 18899, 94495, 245687, 434677, 1228435, 2173385, 5650801, 28254005]

約数ペア:

[(1, 28254005), (5, 5650801), (13, 2173385), (23, 1228435), (65, 434677), (115, 245687), (299, 94495), (1495, 18899)]