20601740

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1607}}^1$

素因数の和:2257

約数の個数: 24

約数和(自身を含む): 43358112

約数和(自身を除く): 22756372

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 1607, 2564, 3205, 3214, 6410, 6428, 8035, 12820, 16070, 32140, 1030087, 2060174, 4120348, 5150435, 10300870, 20601740]

約数ペア:

[(1, 20601740), (2, 10300870), (4, 5150435), (5, 4120348), (10, 2060174), (20, 1030087), (641, 32140), (1282, 16070), (1607, 12820), (2564, 8035), (3205, 6428), (3214, 6410)]