612440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 1406160

約数和(自身を除く): 793720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 251, 305, 488, 502, 610, 1004, 1220, 1255, 2008, 2440, 2510, 5020, 10040, 15311, 30622, 61244, 76555, 122488, 153110, 306220, 612440]

約数ペア:

[(1, 612440), (2, 306220), (4, 153110), (5, 122488), (8, 76555), (10, 61244), (20, 30622), (40, 15311), (61, 10040), (122, 5020), (244, 2510), (251, 2440), (305, 2008), (488, 1255), (502, 1220), (610, 1004)]