201900020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1442143}}^1$

素因数の和:1442159

約数の個数: 24

約数和(自身を含む): 484560384

約数和(自身を除く): 282660364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1442143, 2884286, 5768572, 7210715, 10095001, 14421430, 20190002, 28842860, 40380004, 50475005, 100950010, 201900020]

約数ペア:

[(1, 201900020), (2, 100950010), (4, 50475005), (5, 40380004), (7, 28842860), (10, 20190002), (14, 14421430), (20, 10095001), (28, 7210715), (35, 5768572), (70, 2884286), (140, 1442143)]