28913020

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{2039}}^1$

素因数の和:2757

約数の個数: 24

約数和(自身を含む): 60832800

約数和(自身を除く): 31919780

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 2039, 2836, 3545, 4078, 7090, 8156, 10195, 14180, 20390, 40780, 1445651, 2891302, 5782604, 7228255, 14456510, 28913020]

約数ペア:

[(1, 28913020), (2, 14456510), (4, 7228255), (5, 5782604), (10, 2891302), (20, 1445651), (709, 40780), (1418, 20390), (2039, 14180), (2836, 10195), (3545, 8156), (4078, 7090)]