20415265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3529}}^1$

素因数の和:3636

約数の個数: 16

約数和(自身を含む): 26686800

約数和(自身を除く): 6271535

約数列:

[1, 5, 13, 65, 89, 445, 1157, 3529, 5785, 17645, 45877, 229385, 314081, 1570405, 4083053, 20415265]

約数ペア:

[(1, 20415265), (5, 4083053), (13, 1570405), (65, 314081), (89, 229385), (445, 45877), (1157, 17645), (3529, 5785)]