257400480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:287

約数の個数: 192

約数和(自身を含む): 843696000

約数和(自身を除く): 586295520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 61, 80, 96, 118, 120, 122, 149, 160, 177, 183, 236, 240, 244, 295, 298, 305, 354, 366, 447, 472, 480, 488, 590, 596, 610, 708, 732, 745, 885, 894, 915, 944, 976, 1180, 1192, 1220, 1416, 1464, 1490, 1770, 1788, 1830, 1888, 1952, 2235, 2360, 2384, 2440, 2832, 2928, 2980, 3540, 3576, 3599, 3660, 4470, 4720, 4768, 4880, 5664, 5856, 5960, 7080, 7152, 7198, 7320, 8791, 8940, 9089, 9440, 9760, 10797, 11920, 14160, 14304, 14396, 14640, 17582, 17880, 17995, 18178, 21594, 23840, 26373, 27267, 28320, 28792, 29280, 35164, 35760, 35990, 36356, 43188, 43955, 45445, 52746, 53985, 54534, 57584, 70328, 71520, 71980, 72712, 86376, 87910, 90890, 105492, 107970, 109068, 115168, 131865, 136335, 140656, 143960, 145424, 172752, 175820, 181780, 210984, 215940, 218136, 263730, 272670, 281312, 287920, 290848, 345504, 351640, 363560, 421968, 431880, 436272, 527460, 536251, 545340, 575840, 703280, 727120, 843936, 863760, 872544, 1054920, 1072502, 1090680, 1406560, 1454240, 1608753, 1727520, 2109840, 2145004, 2181360, 2681255, 3217506, 4219680, 4290008, 4362720, 5362510, 6435012, 8043765, 8580016, 10725020, 12870024, 16087530, 17160032, 21450040, 25740048, 32175060, 42900080, 51480096, 64350120, 85800160, 128700240, 257400480]

約数ペア:

[(1, 257400480), (2, 128700240), (3, 85800160), (4, 64350120), (5, 51480096), (6, 42900080), (8, 32175060), (10, 25740048), (12, 21450040), (15, 17160032), (16, 16087530), (20, 12870024), (24, 10725020), (30, 8580016), (32, 8043765), (40, 6435012), (48, 5362510), (59, 4362720), (60, 4290008), (61, 4219680), (80, 3217506), (96, 2681255), (118, 2181360), (120, 2145004), (122, 2109840), (149, 1727520), (160, 1608753), (177, 1454240), (183, 1406560), (236, 1090680), (240, 1072502), (244, 1054920), (295, 872544), (298, 863760), (305, 843936), (354, 727120), (366, 703280), (447, 575840), (472, 545340), (480, 536251), (488, 527460), (590, 436272), (596, 431880), (610, 421968), (708, 363560), (732, 351640), (745, 345504), (885, 290848), (894, 287920), (915, 281312), (944, 272670), (976, 263730), (1180, 218136), (1192, 215940), (1220, 210984), (1416, 181780), (1464, 175820), (1490, 172752), (1770, 145424), (1788, 143960), (1830, 140656), (1888, 136335), (1952, 131865), (2235, 115168), (2360, 109068), (2384, 107970), (2440, 105492), (2832, 90890), (2928, 87910), (2980, 86376), (3540, 72712), (3576, 71980), (3599, 71520), (3660, 70328), (4470, 57584), (4720, 54534), (4768, 53985), (4880, 52746), (5664, 45445), (5856, 43955), (5960, 43188), (7080, 36356), (7152, 35990), (7198, 35760), (7320, 35164), (8791, 29280), (8940, 28792), (9089, 28320), (9440, 27267), (9760, 26373), (10797, 23840), (11920, 21594), (14160, 18178), (14304, 17995), (14396, 17880), (14640, 17582)]