20066900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 50413440

約数和(自身を除く): 30346540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 109, 140, 175, 218, 263, 350, 436, 526, 545, 700, 763, 1052, 1090, 1315, 1526, 1841, 2180, 2630, 2725, 3052, 3682, 3815, 5260, 5450, 6575, 7364, 7630, 9205, 10900, 13150, 15260, 18410, 19075, 26300, 28667, 36820, 38150, 46025, 57334, 76300, 92050, 114668, 143335, 184100, 200669, 286670, 401338, 573340, 716675, 802676, 1003345, 1433350, 2006690, 2866700, 4013380, 5016725, 10033450, 20066900]

約数ペア:

[(1, 20066900), (2, 10033450), (4, 5016725), (5, 4013380), (7, 2866700), (10, 2006690), (14, 1433350), (20, 1003345), (25, 802676), (28, 716675), (35, 573340), (50, 401338), (70, 286670), (100, 200669), (109, 184100), (140, 143335), (175, 114668), (218, 92050), (263, 76300), (350, 57334), (436, 46025), (526, 38150), (545, 36820), (700, 28667), (763, 26300), (1052, 19075), (1090, 18410), (1315, 15260), (1526, 13150), (1841, 10900), (2180, 9205), (2630, 7630), (2725, 7364), (3052, 6575), (3682, 5450), (3815, 5260)]