255913280

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{859}}^1$

素因数の和:909

約数の個数: 168

約数和(自身を含む): 747064800

約数和(自身を除く): 491151520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 320, 380, 392, 448, 490, 532, 560, 608, 665, 760, 784, 859, 931, 980, 1064, 1120, 1216, 1330, 1520, 1568, 1718, 1862, 1960, 2128, 2240, 2660, 3040, 3136, 3436, 3724, 3920, 4256, 4295, 4655, 5320, 6013, 6080, 6872, 7448, 7840, 8512, 8590, 9310, 10640, 12026, 13744, 14896, 15680, 16321, 17180, 18620, 21280, 24052, 27488, 29792, 30065, 32642, 34360, 37240, 42091, 42560, 48104, 54976, 59584, 60130, 65284, 68720, 74480, 81605, 84182, 96208, 114247, 120260, 130568, 137440, 148960, 163210, 168364, 192416, 210455, 228494, 240520, 261136, 274880, 297920, 326420, 336728, 384832, 420910, 456988, 481040, 522272, 571235, 652840, 673456, 799729, 841820, 913976, 962080, 1044544, 1142470, 1305680, 1346912, 1599458, 1683640, 1827952, 1924160, 2284940, 2611360, 2693824, 3198916, 3367280, 3655904, 3998645, 4569880, 5222720, 6397832, 6734560, 7311808, 7997290, 9139760, 12795664, 13469120, 15994580, 18279520, 25591328, 31989160, 36559040, 51182656, 63978320, 127956640, 255913280]

約数ペア:

[(1, 255913280), (2, 127956640), (4, 63978320), (5, 51182656), (7, 36559040), (8, 31989160), (10, 25591328), (14, 18279520), (16, 15994580), (19, 13469120), (20, 12795664), (28, 9139760), (32, 7997290), (35, 7311808), (38, 6734560), (40, 6397832), (49, 5222720), (56, 4569880), (64, 3998645), (70, 3655904), (76, 3367280), (80, 3198916), (95, 2693824), (98, 2611360), (112, 2284940), (133, 1924160), (140, 1827952), (152, 1683640), (160, 1599458), (190, 1346912), (196, 1305680), (224, 1142470), (245, 1044544), (266, 962080), (280, 913976), (304, 841820), (320, 799729), (380, 673456), (392, 652840), (448, 571235), (490, 522272), (532, 481040), (560, 456988), (608, 420910), (665, 384832), (760, 336728), (784, 326420), (859, 297920), (931, 274880), (980, 261136), (1064, 240520), (1120, 228494), (1216, 210455), (1330, 192416), (1520, 168364), (1568, 163210), (1718, 148960), (1862, 137440), (1960, 130568), (2128, 120260), (2240, 114247), (2660, 96208), (3040, 84182), (3136, 81605), (3436, 74480), (3724, 68720), (3920, 65284), (4256, 60130), (4295, 59584), (4655, 54976), (5320, 48104), (6013, 42560), (6080, 42091), (6872, 37240), (7448, 34360), (7840, 32642), (8512, 30065), (8590, 29792), (9310, 27488), (10640, 24052), (12026, 21280), (13744, 18620), (14896, 17180), (15680, 16321)]