19956590

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19759}}^1$

素因数の和:19867

約数の個数: 16

約数和(自身を含む): 36279360

約数和(自身を除く): 16322770

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 19759, 39518, 98795, 197590, 1995659, 3991318, 9978295, 19956590]

約数ペア:

[(1, 19956590), (2, 9978295), (5, 3991318), (10, 1995659), (101, 197590), (202, 98795), (505, 39518), (1010, 19759)]