19810130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86131}}^1$

素因数の和:86161

約数の個数: 16

約数和(自身を含む): 37209024

約数和(自身を除く): 17398894

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 86131, 172262, 430655, 861310, 1981013, 3962026, 9905065, 19810130]

約数ペア:

[(1, 19810130), (2, 9905065), (5, 3962026), (10, 1981013), (23, 861310), (46, 430655), (115, 172262), (230, 86131)]