2051257690

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{320009}}^1$

素因数の和:320657

約数の個数: 16

約数和(自身を含む): 3698035560

約数和(自身を除く): 1646777870

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6410, 320009, 640018, 1600045, 3200090, 205125769, 410251538, 1025628845, 2051257690]

約数ペア:

[(1, 2051257690), (2, 1025628845), (5, 410251538), (10, 205125769), (641, 3200090), (1282, 1600045), (3205, 640018), (6410, 320009)]