20203240

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2617}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 45710280

約数和(自身を除く): 25507040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2617, 3860, 5234, 7720, 10468, 13085, 20936, 26170, 52340, 104680, 505081, 1010162, 2020324, 2525405, 4040648, 5050810, 10101620, 20203240]

約数ペア:

[(1, 20203240), (2, 10101620), (4, 5050810), (5, 4040648), (8, 2525405), (10, 2020324), (20, 1010162), (40, 505081), (193, 104680), (386, 52340), (772, 26170), (965, 20936), (1544, 13085), (1930, 10468), (2617, 7720), (3860, 5234)]