87028900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{17761}}^1$

素因数の和:17789

約数の個数: 54

約数和(自身を含む): 219698178

約数和(自身を除く): 132669278

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, 17761, 35522, 71044, 88805, 124327, 177610, 248654, 355220, 444025, 497308, 621635, 870289, 888050, 1243270, 1740578, 1776100, 2486540, 3108175, 3481156, 4351445, 6216350, 8702890, 12432700, 17405780, 21757225, 43514450, 87028900]

約数ペア:

[(1, 87028900), (2, 43514450), (4, 21757225), (5, 17405780), (7, 12432700), (10, 8702890), (14, 6216350), (20, 4351445), (25, 3481156), (28, 3108175), (35, 2486540), (49, 1776100), (50, 1740578), (70, 1243270), (98, 888050), (100, 870289), (140, 621635), (175, 497308), (196, 444025), (245, 355220), (350, 248654), (490, 177610), (700, 124327), (980, 88805), (1225, 71044), (2450, 35522), (4900, 17761)]