2188720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:373

約数の個数: 40

約数和(自身を含む): 5155920

約数和(自身を除く): 2967200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 251, 436, 502, 545, 872, 1004, 1090, 1255, 1744, 2008, 2180, 2510, 4016, 4360, 5020, 8720, 10040, 20080, 27359, 54718, 109436, 136795, 218872, 273590, 437744, 547180, 1094360, 2188720]

約数ペア:

[(1, 2188720), (2, 1094360), (4, 547180), (5, 437744), (8, 273590), (10, 218872), (16, 136795), (20, 109436), (40, 54718), (80, 27359), (109, 20080), (218, 10040), (251, 8720), (436, 5020), (502, 4360), (545, 4016), (872, 2510), (1004, 2180), (1090, 2008), (1255, 1744)]