20215130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155501}}^1$

素因数の和:155521

約数の個数: 16

約数和(自身を含む): 39186504

約数和(自身を除く): 18971374

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 155501, 311002, 777505, 1555010, 2021513, 4043026, 10107565, 20215130]

約数ペア:

[(1, 20215130), (2, 10107565), (5, 4043026), (10, 2021513), (13, 1555010), (26, 777505), (65, 311002), (130, 155501)]