255838960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:315

約数の個数: 120

約数和(自身を含む): 653529600

約数和(自身を除く): 397690640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 149, 169, 208, 254, 260, 298, 338, 508, 520, 596, 635, 676, 745, 845, 1016, 1040, 1192, 1270, 1352, 1490, 1651, 1690, 1937, 2032, 2384, 2540, 2704, 2980, 3302, 3380, 3874, 5080, 5960, 6604, 6760, 7748, 8255, 9685, 10160, 11920, 13208, 13520, 15496, 16510, 18923, 19370, 21463, 25181, 26416, 30992, 33020, 37846, 38740, 42926, 50362, 66040, 75692, 77480, 85852, 94615, 100724, 107315, 125905, 132080, 151384, 154960, 171704, 189230, 201448, 214630, 245999, 251810, 302768, 343408, 378460, 402896, 429260, 491998, 503620, 756920, 858520, 983996, 1007240, 1229995, 1513840, 1717040, 1967992, 2014480, 2459990, 3197987, 3935984, 4919980, 6395974, 9839960, 12791948, 15989935, 19679920, 25583896, 31979870, 51167792, 63959740, 127919480, 255838960]

約数ペア:

[(1, 255838960), (2, 127919480), (4, 63959740), (5, 51167792), (8, 31979870), (10, 25583896), (13, 19679920), (16, 15989935), (20, 12791948), (26, 9839960), (40, 6395974), (52, 4919980), (65, 3935984), (80, 3197987), (104, 2459990), (127, 2014480), (130, 1967992), (149, 1717040), (169, 1513840), (208, 1229995), (254, 1007240), (260, 983996), (298, 858520), (338, 756920), (508, 503620), (520, 491998), (596, 429260), (635, 402896), (676, 378460), (745, 343408), (845, 302768), (1016, 251810), (1040, 245999), (1192, 214630), (1270, 201448), (1352, 189230), (1490, 171704), (1651, 154960), (1690, 151384), (1937, 132080), (2032, 125905), (2384, 107315), (2540, 100724), (2704, 94615), (2980, 85852), (3302, 77480), (3380, 75692), (3874, 66040), (5080, 50362), (5960, 42926), (6604, 38740), (6760, 37846), (7748, 33020), (8255, 30992), (9685, 26416), (10160, 25181), (11920, 21463), (13208, 19370), (13520, 18923), (15496, 16510)]