1288700

素因数分解:

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

素因数の和:291

約数の個数: 54

約数和(自身を含む): 3265416

約数和(自身を除く): 1976716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 263, 350, 490, 526, 700, 980, 1052, 1225, 1315, 1841, 2450, 2630, 3682, 4900, 5260, 6575, 7364, 9205, 12887, 13150, 18410, 25774, 26300, 36820, 46025, 51548, 64435, 92050, 128870, 184100, 257740, 322175, 644350, 1288700]

約数ペア:

[(1, 1288700), (2, 644350), (4, 322175), (5, 257740), (7, 184100), (10, 128870), (14, 92050), (20, 64435), (25, 51548), (28, 46025), (35, 36820), (49, 26300), (50, 25774), (70, 18410), (98, 13150), (100, 12887), (140, 9205), (175, 7364), (196, 6575), (245, 5260), (263, 4900), (350, 3682), (490, 2630), (526, 2450), (700, 1841), (980, 1315), (1052, 1225)]