408020808

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1789}}^1$

素因数の和:1871

約数の個数: 128

約数和(自身を含む): 1190851200

約数和(自身を除く): 782830392

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 43, 51, 52, 68, 78, 86, 102, 104, 129, 136, 156, 172, 204, 221, 258, 312, 344, 408, 442, 516, 559, 663, 731, 884, 1032, 1118, 1326, 1462, 1677, 1768, 1789, 2193, 2236, 2652, 2924, 3354, 3578, 4386, 4472, 5304, 5367, 5848, 6708, 7156, 8772, 9503, 10734, 13416, 14312, 17544, 19006, 21468, 23257, 28509, 30413, 38012, 42936, 46514, 57018, 60826, 69771, 76024, 76927, 91239, 93028, 114036, 121652, 139542, 153854, 182478, 186056, 228072, 230781, 243304, 279084, 307708, 364956, 395369, 461562, 558168, 615416, 729912, 790738, 923124, 1000051, 1186107, 1307759, 1581476, 1846248, 2000102, 2372214, 2615518, 3000153, 3162952, 3923277, 4000204, 4744428, 5231036, 6000306, 7846554, 8000408, 9488856, 10462072, 12000612, 15693108, 17000867, 24001224, 31386216, 34001734, 51002601, 68003468, 102005202, 136006936, 204010404, 408020808]

約数ペア:

[(1, 408020808), (2, 204010404), (3, 136006936), (4, 102005202), (6, 68003468), (8, 51002601), (12, 34001734), (13, 31386216), (17, 24001224), (24, 17000867), (26, 15693108), (34, 12000612), (39, 10462072), (43, 9488856), (51, 8000408), (52, 7846554), (68, 6000306), (78, 5231036), (86, 4744428), (102, 4000204), (104, 3923277), (129, 3162952), (136, 3000153), (156, 2615518), (172, 2372214), (204, 2000102), (221, 1846248), (258, 1581476), (312, 1307759), (344, 1186107), (408, 1000051), (442, 923124), (516, 790738), (559, 729912), (663, 615416), (731, 558168), (884, 461562), (1032, 395369), (1118, 364956), (1326, 307708), (1462, 279084), (1677, 243304), (1768, 230781), (1789, 228072), (2193, 186056), (2236, 182478), (2652, 153854), (2924, 139542), (3354, 121652), (3578, 114036), (4386, 93028), (4472, 91239), (5304, 76927), (5367, 76024), (5848, 69771), (6708, 60826), (7156, 57018), (8772, 46514), (9503, 42936), (10734, 38012), (13416, 30413), (14312, 28509), (17544, 23257), (19006, 21468)]