4377440

素因数分解:

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

素因数の和:375

約数の個数: 48

約数和(自身を含む): 10478160

約数和(自身を除く): 6100720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 251, 436, 502, 545, 872, 1004, 1090, 1255, 1744, 2008, 2180, 2510, 3488, 4016, 4360, 5020, 8032, 8720, 10040, 17440, 20080, 27359, 40160, 54718, 109436, 136795, 218872, 273590, 437744, 547180, 875488, 1094360, 2188720, 4377440]

約数ペア:

[(1, 4377440), (2, 2188720), (4, 1094360), (5, 875488), (8, 547180), (10, 437744), (16, 273590), (20, 218872), (32, 136795), (40, 109436), (80, 54718), (109, 40160), (160, 27359), (218, 20080), (251, 17440), (436, 10040), (502, 8720), (545, 8032), (872, 5020), (1004, 4360), (1090, 4016), (1255, 3488), (1744, 2510), (2008, 2180)]