18199720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:359

約数の個数: 128

約数和(自身を含む): 53913600

約数和(自身を除く): 35713880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 311, 380, 385, 418, 440, 532, 616, 622, 665, 760, 770, 836, 1045, 1064, 1244, 1330, 1463, 1540, 1555, 1672, 2090, 2177, 2488, 2660, 2926, 3080, 3110, 3421, 4180, 4354, 5320, 5852, 5909, 6220, 6842, 7315, 8360, 8708, 10885, 11704, 11818, 12440, 13684, 14630, 17105, 17416, 21770, 23636, 23947, 27368, 29260, 29545, 34210, 41363, 43540, 47272, 47894, 58520, 59090, 64999, 68420, 82726, 87080, 95788, 118180, 119735, 129998, 136840, 165452, 191576, 206815, 236360, 239470, 259996, 324995, 330904, 413630, 454993, 478940, 519992, 649990, 827260, 909986, 957880, 1299980, 1654520, 1819972, 2274965, 2599960, 3639944, 4549930, 9099860, 18199720]

約数ペア:

[(1, 18199720), (2, 9099860), (4, 4549930), (5, 3639944), (7, 2599960), (8, 2274965), (10, 1819972), (11, 1654520), (14, 1299980), (19, 957880), (20, 909986), (22, 827260), (28, 649990), (35, 519992), (38, 478940), (40, 454993), (44, 413630), (55, 330904), (56, 324995), (70, 259996), (76, 239470), (77, 236360), (88, 206815), (95, 191576), (110, 165452), (133, 136840), (140, 129998), (152, 119735), (154, 118180), (190, 95788), (209, 87080), (220, 82726), (266, 68420), (280, 64999), (308, 59090), (311, 58520), (380, 47894), (385, 47272), (418, 43540), (440, 41363), (532, 34210), (616, 29545), (622, 29260), (665, 27368), (760, 23947), (770, 23636), (836, 21770), (1045, 17416), (1064, 17105), (1244, 14630), (1330, 13684), (1463, 12440), (1540, 11818), (1555, 11704), (1672, 10885), (2090, 8708), (2177, 8360), (2488, 7315), (2660, 6842), (2926, 6220), (3080, 5909), (3110, 5852), (3421, 5320), (4180, 4354)]