2489072720

素因数分解:

$2^4\times 5^1\times {\mathrm{31113409}}^1$

素因数の和:31113422

約数の個数: 20

約数和(自身を含む): 5787094260

約数和(自身を除く): 3298021540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31113409, 62226818, 124453636, 155567045, 248907272, 311134090, 497814544, 622268180, 1244536360, 2489072720]

約数ペア:

[(1, 2489072720), (2, 1244536360), (4, 622268180), (5, 497814544), (8, 311134090), (10, 248907272), (16, 155567045), (20, 124453636), (40, 62226818), (80, 31113409)]