25866440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10601}}^1$

素因数の和:10673

約数の個数: 32

約数和(自身を含む): 59159160

約数和(自身を除く): 33292720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10601, 21202, 42404, 53005, 84808, 106010, 212020, 424040, 646661, 1293322, 2586644, 3233305, 5173288, 6466610, 12933220, 25866440]

約数ペア:

[(1, 25866440), (2, 12933220), (4, 6466610), (5, 5173288), (8, 3233305), (10, 2586644), (20, 1293322), (40, 646661), (61, 424040), (122, 212020), (244, 106010), (305, 84808), (488, 53005), (610, 42404), (1220, 21202), (2440, 10601)]