19377520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^2\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 60

約数和(自身を含む): 46476936

約数和(自身を除く): 27099416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 131, 172, 215, 262, 344, 430, 524, 655, 688, 860, 1048, 1310, 1720, 1849, 2096, 2620, 3440, 3698, 5240, 5633, 7396, 9245, 10480, 11266, 14792, 18490, 22532, 28165, 29584, 36980, 45064, 56330, 73960, 90128, 112660, 147920, 225320, 242219, 450640, 484438, 968876, 1211095, 1937752, 2422190, 3875504, 4844380, 9688760, 19377520]

約数ペア:

[(1, 19377520), (2, 9688760), (4, 4844380), (5, 3875504), (8, 2422190), (10, 1937752), (16, 1211095), (20, 968876), (40, 484438), (43, 450640), (80, 242219), (86, 225320), (131, 147920), (172, 112660), (215, 90128), (262, 73960), (344, 56330), (430, 45064), (524, 36980), (655, 29584), (688, 28165), (860, 22532), (1048, 18490), (1310, 14792), (1720, 11266), (1849, 10480), (2096, 9245), (2620, 7396), (3440, 5633), (3698, 5240)]