381028900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{77761}}^1$

素因数の和:77789

約数の個数: 54

約数和(自身を含む): 961838178

約数和(自身を除く): 580809278

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, 4900, 77761, 155522, 311044, 388805, 544327, 777610, 1088654, 1555220, 1944025, 2177308, 2721635, 3810289, 3888050, 5443270, 7620578, 7776100, 10886540, 13608175, 15241156, 19051445, 27216350, 38102890, 54432700, 76205780, 95257225, 190514450, 381028900]

約数ペア:

[(1, 381028900), (2, 190514450), (4, 95257225), (5, 76205780), (7, 54432700), (10, 38102890), (14, 27216350), (20, 19051445), (25, 15241156), (28, 13608175), (35, 10886540), (49, 7776100), (50, 7620578), (70, 5443270), (98, 3888050), (100, 3810289), (140, 2721635), (175, 2177308), (196, 1944025), (245, 1555220), (350, 1088654), (490, 777610), (700, 544327), (980, 388805), (1225, 311044), (2450, 155522), (4900, 77761)]