20288380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144917}}^1$

素因数の和:144933

約数の個数: 24

約数和(自身を含む): 48692448

約数和(自身を除く): 28404068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144917, 289834, 579668, 724585, 1014419, 1449170, 2028838, 2898340, 4057676, 5072095, 10144190, 20288380]

約数ペア:

[(1, 20288380), (2, 10144190), (4, 5072095), (5, 4057676), (7, 2898340), (10, 2028838), (14, 1449170), (20, 1014419), (28, 724585), (35, 579668), (70, 289834), (140, 144917)]