2015780240

素因数分解:

$2^4\times 5^1\times {\mathrm{25197253}}^1$

素因数の和:25197266

約数の個数: 20

約数和(自身を含む): 4686689244

約数和(自身を除く): 2670909004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25197253, 50394506, 100789012, 125986265, 201578024, 251972530, 403156048, 503945060, 1007890120, 2015780240]

約数ペア:

[(1, 2015780240), (2, 1007890120), (4, 503945060), (5, 403156048), (8, 251972530), (10, 201578024), (16, 125986265), (20, 100789012), (40, 50394506), (80, 25197253)]