257375040

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:577

約数の個数: 224

約数和(自身を含む): 903280896

約数和(自身を除く): 645905856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 41, 48, 52, 60, 64, 65, 78, 80, 82, 96, 104, 120, 123, 130, 156, 160, 164, 192, 195, 205, 208, 240, 246, 260, 312, 320, 328, 390, 410, 416, 480, 492, 503, 520, 533, 615, 624, 656, 780, 820, 832, 960, 984, 1006, 1040, 1066, 1230, 1248, 1312, 1509, 1560, 1599, 1640, 1968, 2012, 2080, 2132, 2460, 2496, 2515, 2624, 2665, 3018, 3120, 3198, 3280, 3936, 4024, 4160, 4264, 4920, 5030, 5330, 6036, 6240, 6396, 6539, 6560, 7545, 7872, 7995, 8048, 8528, 9840, 10060, 10660, 12072, 12480, 12792, 13078, 13120, 15090, 15990, 16096, 17056, 19617, 19680, 20120, 20623, 21320, 24144, 25584, 26156, 30180, 31980, 32192, 32695, 34112, 39234, 39360, 40240, 41246, 42640, 48288, 51168, 52312, 60360, 61869, 63960, 65390, 78468, 80480, 82492, 85280, 96576, 98085, 102336, 103115, 104624, 120720, 123738, 127920, 130780, 156936, 160960, 164984, 170560, 196170, 206230, 209248, 241440, 247476, 255840, 261560, 268099, 309345, 313872, 329968, 392340, 412460, 418496, 482880, 494952, 511680, 523120, 536198, 618690, 627744, 659936, 784680, 804297, 824920, 989904, 1046240, 1072396, 1237380, 1255488, 1319872, 1340495, 1569360, 1608594, 1649840, 1979808, 2092480, 2144792, 2474760, 2680990, 3138720, 3217188, 3299680, 3959616, 4021485, 4289584, 4949520, 5361980, 6277440, 6434376, 6599360, 8042970, 8579168, 9899040, 10723960, 12868752, 16085940, 17158336, 19798080, 21447920, 25737504, 32171880, 42895840, 51475008, 64343760, 85791680, 128687520, 257375040]

約数ペア:

[(1, 257375040), (2, 128687520), (3, 85791680), (4, 64343760), (5, 51475008), (6, 42895840), (8, 32171880), (10, 25737504), (12, 21447920), (13, 19798080), (15, 17158336), (16, 16085940), (20, 12868752), (24, 10723960), (26, 9899040), (30, 8579168), (32, 8042970), (39, 6599360), (40, 6434376), (41, 6277440), (48, 5361980), (52, 4949520), (60, 4289584), (64, 4021485), (65, 3959616), (78, 3299680), (80, 3217188), (82, 3138720), (96, 2680990), (104, 2474760), (120, 2144792), (123, 2092480), (130, 1979808), (156, 1649840), (160, 1608594), (164, 1569360), (192, 1340495), (195, 1319872), (205, 1255488), (208, 1237380), (240, 1072396), (246, 1046240), (260, 989904), (312, 824920), (320, 804297), (328, 784680), (390, 659936), (410, 627744), (416, 618690), (480, 536198), (492, 523120), (503, 511680), (520, 494952), (533, 482880), (615, 418496), (624, 412460), (656, 392340), (780, 329968), (820, 313872), (832, 309345), (960, 268099), (984, 261560), (1006, 255840), (1040, 247476), (1066, 241440), (1230, 209248), (1248, 206230), (1312, 196170), (1509, 170560), (1560, 164984), (1599, 160960), (1640, 156936), (1968, 130780), (2012, 127920), (2080, 123738), (2132, 120720), (2460, 104624), (2496, 103115), (2515, 102336), (2624, 98085), (2665, 96576), (3018, 85280), (3120, 82492), (3198, 80480), (3280, 78468), (3936, 65390), (4024, 63960), (4160, 61869), (4264, 60360), (4920, 52312), (5030, 51168), (5330, 48288), (6036, 42640), (6240, 41246), (6396, 40240), (6539, 39360), (6560, 39234), (7545, 34112), (7872, 32695), (7995, 32192), (8048, 31980), (8528, 30180), (9840, 26156), (10060, 25584), (10660, 24144), (12072, 21320), (12480, 20623), (12792, 20120), (13078, 19680), (13120, 19617), (15090, 17056), (15990, 16096)]