1788135220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109433}}^1$

素因数の和:109504

約数の個数: 48

約数和(自身を含む): 4044680640

約数和(自身を除く): 2256545420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 16340, 109433, 218866, 437732, 547165, 1094330, 2079227, 2188660, 4158454, 4705619, 8316908, 9411238, 10396135, 18822476, 20792270, 23528095, 41584540, 47056190, 89406761, 94112380, 178813522, 357627044, 447033805, 894067610, 1788135220]

約数ペア:

[(1, 1788135220), (2, 894067610), (4, 447033805), (5, 357627044), (10, 178813522), (19, 94112380), (20, 89406761), (38, 47056190), (43, 41584540), (76, 23528095), (86, 20792270), (95, 18822476), (172, 10396135), (190, 9411238), (215, 8316908), (380, 4705619), (430, 4158454), (817, 2188660), (860, 2079227), (1634, 1094330), (3268, 547165), (4085, 437732), (8170, 218866), (16340, 109433)]