2540020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{18143}}^1$

素因数の和:18159

約数の個数: 24

約数和(自身を含む): 6096384

約数和(自身を除く): 3556364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 18143, 36286, 72572, 90715, 127001, 181430, 254002, 362860, 508004, 635005, 1270010, 2540020]

約数ペア:

[(1, 2540020), (2, 1270010), (4, 635005), (5, 508004), (7, 362860), (10, 254002), (14, 181430), (20, 127001), (28, 90715), (35, 72572), (70, 36286), (140, 18143)]