28351400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:304

約数の個数: 144

約数和(自身を含む): 83967840

約数和(自身を除く): 55616440

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 49, 50, 55, 56, 70, 77, 88, 98, 100, 110, 140, 154, 175, 196, 200, 220, 245, 263, 275, 280, 308, 350, 385, 392, 440, 490, 526, 539, 550, 616, 700, 770, 980, 1052, 1078, 1100, 1225, 1315, 1400, 1540, 1841, 1925, 1960, 2104, 2156, 2200, 2450, 2630, 2695, 2893, 3080, 3682, 3850, 4312, 4900, 5260, 5390, 5786, 6575, 7364, 7700, 9205, 9800, 10520, 10780, 11572, 12887, 13150, 13475, 14465, 14728, 15400, 18410, 20251, 21560, 23144, 25774, 26300, 26950, 28930, 36820, 40502, 46025, 51548, 52600, 53900, 57860, 64435, 72325, 73640, 81004, 92050, 101255, 103096, 107800, 115720, 128870, 141757, 144650, 162008, 184100, 202510, 257740, 283514, 289300, 322175, 368200, 405020, 506275, 515480, 567028, 578600, 644350, 708785, 810040, 1012550, 1134056, 1288700, 1417570, 2025100, 2577400, 2835140, 3543925, 4050200, 5670280, 7087850, 14175700, 28351400]

約数ペア:

[(1, 28351400), (2, 14175700), (4, 7087850), (5, 5670280), (7, 4050200), (8, 3543925), (10, 2835140), (11, 2577400), (14, 2025100), (20, 1417570), (22, 1288700), (25, 1134056), (28, 1012550), (35, 810040), (40, 708785), (44, 644350), (49, 578600), (50, 567028), (55, 515480), (56, 506275), (70, 405020), (77, 368200), (88, 322175), (98, 289300), (100, 283514), (110, 257740), (140, 202510), (154, 184100), (175, 162008), (196, 144650), (200, 141757), (220, 128870), (245, 115720), (263, 107800), (275, 103096), (280, 101255), (308, 92050), (350, 81004), (385, 73640), (392, 72325), (440, 64435), (490, 57860), (526, 53900), (539, 52600), (550, 51548), (616, 46025), (700, 40502), (770, 36820), (980, 28930), (1052, 26950), (1078, 26300), (1100, 25774), (1225, 23144), (1315, 21560), (1400, 20251), (1540, 18410), (1841, 15400), (1925, 14728), (1960, 14465), (2104, 13475), (2156, 13150), (2200, 12887), (2450, 11572), (2630, 10780), (2695, 10520), (2893, 9800), (3080, 9205), (3682, 7700), (3850, 7364), (4312, 6575), (4900, 5786), (5260, 5390)]