257458320

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2221}}^1$

素因数の和:2270

約数の個数: 240

約数和(自身を含む): 1031576832

約数和(自身を除く): 774118512

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 48, 56, 60, 63, 69, 70, 72, 80, 84, 90, 92, 105, 112, 115, 120, 126, 138, 140, 144, 161, 168, 180, 184, 207, 210, 230, 240, 252, 276, 280, 315, 322, 336, 345, 360, 368, 414, 420, 460, 483, 504, 552, 560, 630, 644, 690, 720, 805, 828, 840, 920, 966, 1008, 1035, 1104, 1260, 1288, 1380, 1449, 1610, 1656, 1680, 1840, 1932, 2070, 2221, 2415, 2520, 2576, 2760, 2898, 3220, 3312, 3864, 4140, 4442, 4830, 5040, 5520, 5796, 6440, 6663, 7245, 7728, 8280, 8884, 9660, 11105, 11592, 12880, 13326, 14490, 15547, 16560, 17768, 19320, 19989, 22210, 23184, 26652, 28980, 31094, 33315, 35536, 38640, 39978, 44420, 46641, 51083, 53304, 57960, 62188, 66630, 77735, 79956, 88840, 93282, 99945, 102166, 106608, 115920, 124376, 133260, 139923, 153249, 155470, 159912, 177680, 186564, 199890, 204332, 233205, 248752, 255415, 266520, 279846, 306498, 310940, 319824, 357581, 373128, 399780, 408664, 459747, 466410, 510830, 533040, 559692, 612996, 621880, 699615, 715162, 746256, 766245, 799560, 817328, 919494, 932820, 1021660, 1072743, 1119384, 1225992, 1243760, 1399230, 1430324, 1532490, 1599120, 1787905, 1838988, 1865640, 2043320, 2145486, 2238768, 2298735, 2451984, 2798460, 2860648, 3064980, 3218229, 3575810, 3677976, 3731280, 4086640, 4290972, 4597470, 5363715, 5596920, 5721296, 6129960, 6436458, 7151620, 7355952, 8581944, 9194940, 10727430, 11193840, 12259920, 12872916, 14303240, 16091145, 17163888, 18389880, 21454860, 25745832, 28606480, 32182290, 36779760, 42909720, 51491664, 64364580, 85819440, 128729160, 257458320]

約数ペア:

[(1, 257458320), (2, 128729160), (3, 85819440), (4, 64364580), (5, 51491664), (6, 42909720), (7, 36779760), (8, 32182290), (9, 28606480), (10, 25745832), (12, 21454860), (14, 18389880), (15, 17163888), (16, 16091145), (18, 14303240), (20, 12872916), (21, 12259920), (23, 11193840), (24, 10727430), (28, 9194940), (30, 8581944), (35, 7355952), (36, 7151620), (40, 6436458), (42, 6129960), (45, 5721296), (46, 5596920), (48, 5363715), (56, 4597470), (60, 4290972), (63, 4086640), (69, 3731280), (70, 3677976), (72, 3575810), (80, 3218229), (84, 3064980), (90, 2860648), (92, 2798460), (105, 2451984), (112, 2298735), (115, 2238768), (120, 2145486), (126, 2043320), (138, 1865640), (140, 1838988), (144, 1787905), (161, 1599120), (168, 1532490), (180, 1430324), (184, 1399230), (207, 1243760), (210, 1225992), (230, 1119384), (240, 1072743), (252, 1021660), (276, 932820), (280, 919494), (315, 817328), (322, 799560), (336, 766245), (345, 746256), (360, 715162), (368, 699615), (414, 621880), (420, 612996), (460, 559692), (483, 533040), (504, 510830), (552, 466410), (560, 459747), (630, 408664), (644, 399780), (690, 373128), (720, 357581), (805, 319824), (828, 310940), (840, 306498), (920, 279846), (966, 266520), (1008, 255415), (1035, 248752), (1104, 233205), (1260, 204332), (1288, 199890), (1380, 186564), (1449, 177680), (1610, 159912), (1656, 155470), (1680, 153249), (1840, 139923), (1932, 133260), (2070, 124376), (2221, 115920), (2415, 106608), (2520, 102166), (2576, 99945), (2760, 93282), (2898, 88840), (3220, 79956), (3312, 77735), (3864, 66630), (4140, 62188), (4442, 57960), (4830, 53304), (5040, 51083), (5520, 46641), (5796, 44420), (6440, 39978), (6663, 38640), (7245, 35536), (7728, 33315), (8280, 31094), (8884, 28980), (9660, 26652), (11105, 23184), (11592, 22210), (12880, 19989), (13326, 19320), (14490, 17768), (15547, 16560)]