28840280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103001}}^1$

素因数の和:103019

約数の個数: 32

約数和(自身を含む): 74161440

約数和(自身を除く): 45321160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 103001, 206002, 412004, 515005, 721007, 824008, 1030010, 1442014, 2060020, 2884028, 3605035, 4120040, 5768056, 7210070, 14420140, 28840280]

約数ペア:

[(1, 28840280), (2, 14420140), (4, 7210070), (5, 5768056), (7, 4120040), (8, 3605035), (10, 2884028), (14, 2060020), (20, 1442014), (28, 1030010), (35, 824008), (40, 721007), (56, 515005), (70, 412004), (140, 206002), (280, 103001)]