2019849680

素因数分解:

$2^4\times 5^1\times {\mathrm{25248121}}^1$

素因数の和:25248134

約数の個数: 20

約数和(自身を含む): 4696150692

約数和(自身を除く): 2676301012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25248121, 50496242, 100992484, 126240605, 201984968, 252481210, 403969936, 504962420, 1009924840, 2019849680]

約数ペア:

[(1, 2019849680), (2, 1009924840), (4, 504962420), (5, 403969936), (8, 252481210), (10, 201984968), (16, 126240605), (20, 100992484), (40, 50496242), (80, 25248121)]