671440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 1964160

約数和(自身を除く): 1292720

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, 109, 110, 112, 140, 154, 176, 218, 220, 280, 308, 385, 436, 440, 545, 560, 616, 763, 770, 872, 880, 1090, 1199, 1232, 1526, 1540, 1744, 2180, 2398, 3052, 3080, 3815, 4360, 4796, 5995, 6104, 6160, 7630, 8393, 8720, 9592, 11990, 12208, 15260, 16786, 19184, 23980, 30520, 33572, 41965, 47960, 61040, 67144, 83930, 95920, 134288, 167860, 335720, 671440]

約数ペア:

[(1, 671440), (2, 335720), (4, 167860), (5, 134288), (7, 95920), (8, 83930), (10, 67144), (11, 61040), (14, 47960), (16, 41965), (20, 33572), (22, 30520), (28, 23980), (35, 19184), (40, 16786), (44, 15260), (55, 12208), (56, 11990), (70, 9592), (77, 8720), (80, 8393), (88, 7630), (109, 6160), (110, 6104), (112, 5995), (140, 4796), (154, 4360), (176, 3815), (218, 3080), (220, 3052), (280, 2398), (308, 2180), (385, 1744), (436, 1540), (440, 1526), (545, 1232), (560, 1199), (616, 1090), (763, 880), (770, 872)]