18428900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{3761}}^1$

素因数の和:3789

約数の個数: 54

約数和(自身を含む): 46532178

約数和(自身を除く): 28103278

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 3761, 4900, 7522, 15044, 18805, 26327, 37610, 52654, 75220, 94025, 105308, 131635, 184289, 188050, 263270, 368578, 376100, 526540, 658175, 737156, 921445, 1316350, 1842890, 2632700, 3685780, 4607225, 9214450, 18428900]

約数ペア:

[(1, 18428900), (2, 9214450), (4, 4607225), (5, 3685780), (7, 2632700), (10, 1842890), (14, 1316350), (20, 921445), (25, 737156), (28, 658175), (35, 526540), (49, 376100), (50, 368578), (70, 263270), (98, 188050), (100, 184289), (140, 131635), (175, 105308), (196, 94025), (245, 75220), (350, 52654), (490, 37610), (700, 26327), (980, 18805), (1225, 15044), (2450, 7522), (3761, 4900)]