90209000

素因数分解:

$2^3\times 5^3\times 7^3\times {\mathrm{263}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 247104000

約数和(自身を除く): 156895000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 140, 175, 196, 200, 245, 250, 263, 280, 343, 350, 392, 490, 500, 526, 686, 700, 875, 980, 1000, 1052, 1225, 1315, 1372, 1400, 1715, 1750, 1841, 1960, 2104, 2450, 2630, 2744, 3430, 3500, 3682, 4900, 5260, 6125, 6575, 6860, 7000, 7364, 8575, 9205, 9800, 10520, 12250, 12887, 13150, 13720, 14728, 17150, 18410, 24500, 25774, 26300, 32875, 34300, 36820, 42875, 46025, 49000, 51548, 52600, 64435, 65750, 68600, 73640, 85750, 90209, 92050, 103096, 128870, 131500, 171500, 180418, 184100, 230125, 257740, 263000, 322175, 343000, 360836, 368200, 451045, 460250, 515480, 644350, 721672, 902090, 920500, 1288700, 1610875, 1804180, 1841000, 2255225, 2577400, 3221750, 3608360, 4510450, 6443500, 9020900, 11276125, 12887000, 18041800, 22552250, 45104500, 90209000]

約数ペア:

[(1, 90209000), (2, 45104500), (4, 22552250), (5, 18041800), (7, 12887000), (8, 11276125), (10, 9020900), (14, 6443500), (20, 4510450), (25, 3608360), (28, 3221750), (35, 2577400), (40, 2255225), (49, 1841000), (50, 1804180), (56, 1610875), (70, 1288700), (98, 920500), (100, 902090), (125, 721672), (140, 644350), (175, 515480), (196, 460250), (200, 451045), (245, 368200), (250, 360836), (263, 343000), (280, 322175), (343, 263000), (350, 257740), (392, 230125), (490, 184100), (500, 180418), (526, 171500), (686, 131500), (700, 128870), (875, 103096), (980, 92050), (1000, 90209), (1052, 85750), (1225, 73640), (1315, 68600), (1372, 65750), (1400, 64435), (1715, 52600), (1750, 51548), (1841, 49000), (1960, 46025), (2104, 42875), (2450, 36820), (2630, 34300), (2744, 32875), (3430, 26300), (3500, 25774), (3682, 24500), (4900, 18410), (5260, 17150), (6125, 14728), (6575, 13720), (6860, 13150), (7000, 12887), (7364, 12250), (8575, 10520), (9205, 9800)]