17820880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{263}}^1$

素因数の和:305

約数の個数: 120

約数和(自身を含む): 52246656

約数和(自身を除く): 34425776

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 140, 154, 176, 220, 242, 263, 280, 308, 385, 440, 484, 526, 560, 605, 616, 770, 847, 880, 968, 1052, 1210, 1232, 1315, 1540, 1694, 1841, 1936, 2104, 2420, 2630, 2893, 3080, 3388, 3682, 4208, 4235, 4840, 5260, 5786, 6160, 6776, 7364, 8470, 9205, 9680, 10520, 11572, 13552, 14465, 14728, 16940, 18410, 20251, 21040, 23144, 28930, 29456, 31823, 33880, 36820, 40502, 46288, 57860, 63646, 67760, 73640, 81004, 101255, 115720, 127292, 147280, 159115, 162008, 202510, 222761, 231440, 254584, 318230, 324016, 405020, 445522, 509168, 636460, 810040, 891044, 1113805, 1272920, 1620080, 1782088, 2227610, 2545840, 3564176, 4455220, 8910440, 17820880]

約数ペア:

[(1, 17820880), (2, 8910440), (4, 4455220), (5, 3564176), (7, 2545840), (8, 2227610), (10, 1782088), (11, 1620080), (14, 1272920), (16, 1113805), (20, 891044), (22, 810040), (28, 636460), (35, 509168), (40, 445522), (44, 405020), (55, 324016), (56, 318230), (70, 254584), (77, 231440), (80, 222761), (88, 202510), (110, 162008), (112, 159115), (121, 147280), (140, 127292), (154, 115720), (176, 101255), (220, 81004), (242, 73640), (263, 67760), (280, 63646), (308, 57860), (385, 46288), (440, 40502), (484, 36820), (526, 33880), (560, 31823), (605, 29456), (616, 28930), (770, 23144), (847, 21040), (880, 20251), (968, 18410), (1052, 16940), (1210, 14728), (1232, 14465), (1315, 13552), (1540, 11572), (1694, 10520), (1841, 9680), (1936, 9205), (2104, 8470), (2420, 7364), (2630, 6776), (2893, 6160), (3080, 5786), (3388, 5260), (3682, 4840), (4208, 4235)]