28369420

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{4561}}^1$

素因数の和:4881

約数の個数: 24

約数和(自身を含む): 59780448

約数和(自身を除く): 31411028

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 4561, 6220, 9122, 18244, 22805, 45610, 91220, 1418471, 2836942, 5673884, 7092355, 14184710, 28369420]

約数ペア:

[(1, 28369420), (2, 14184710), (4, 7092355), (5, 5673884), (10, 2836942), (20, 1418471), (311, 91220), (622, 45610), (1244, 22805), (1555, 18244), (3110, 9122), (4561, 6220)]