20624480

素因数分解:

$2^5\times 5^1\times {\mathrm{128903}}^1$

素因数の和:128918

約数の個数: 24

約数和(自身を含む): 48725712

約数和(自身を除く): 28101232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 128903, 257806, 515612, 644515, 1031224, 1289030, 2062448, 2578060, 4124896, 5156120, 10312240, 20624480]

約数ペア:

[(1, 20624480), (2, 10312240), (4, 5156120), (5, 4124896), (8, 2578060), (10, 2062448), (16, 1289030), (20, 1031224), (32, 644515), (40, 515612), (80, 257806), (160, 128903)]