257410440

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:537

約数の個数: 256

約数和(自身を含む): 995328000

約数和(自身を除く): 737917560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 79, 84, 90, 105, 108, 120, 126, 135, 140, 158, 168, 180, 189, 210, 216, 237, 252, 270, 280, 315, 316, 360, 378, 395, 420, 431, 474, 504, 540, 553, 630, 632, 711, 756, 790, 840, 862, 945, 948, 1080, 1106, 1185, 1260, 1293, 1422, 1512, 1580, 1659, 1724, 1890, 1896, 2133, 2155, 2212, 2370, 2520, 2586, 2765, 2844, 3017, 3160, 3318, 3448, 3555, 3780, 3879, 4266, 4310, 4424, 4740, 4977, 5172, 5530, 5688, 6034, 6465, 6636, 7110, 7560, 7758, 8295, 8532, 8620, 9051, 9480, 9954, 10344, 10665, 11060, 11637, 12068, 12930, 13272, 14220, 14931, 15085, 15516, 16590, 17064, 17240, 18102, 19395, 19908, 21330, 22120, 23274, 24136, 24885, 25860, 27153, 28440, 29862, 30170, 31032, 33180, 34049, 36204, 38790, 39816, 42660, 45255, 46548, 49770, 51720, 54306, 58185, 59724, 60340, 66360, 68098, 72408, 74655, 77580, 81459, 85320, 90510, 93096, 99540, 102147, 108612, 116370, 119448, 120680, 135765, 136196, 149310, 155160, 162918, 170245, 181020, 199080, 204294, 217224, 232740, 238343, 271530, 272392, 298620, 306441, 325836, 340490, 362040, 407295, 408588, 465480, 476686, 510735, 543060, 597240, 612882, 651672, 680980, 715029, 814590, 817176, 919323, 953372, 1021470, 1086120, 1191715, 1225764, 1361960, 1430058, 1532205, 1629180, 1838646, 1906744, 2042940, 2145087, 2383430, 2451528, 2860116, 3064410, 3258360, 3575145, 3677292, 4085880, 4290174, 4596615, 4766860, 5720232, 6128820, 6435261, 7150290, 7354584, 8580348, 9193230, 9533720, 10725435, 12257640, 12870522, 14300580, 17160696, 18386460, 21450870, 25741044, 28601160, 32176305, 36772920, 42901740, 51482088, 64352610, 85803480, 128705220, 257410440]

約数ペア:

[(1, 257410440), (2, 128705220), (3, 85803480), (4, 64352610), (5, 51482088), (6, 42901740), (7, 36772920), (8, 32176305), (9, 28601160), (10, 25741044), (12, 21450870), (14, 18386460), (15, 17160696), (18, 14300580), (20, 12870522), (21, 12257640), (24, 10725435), (27, 9533720), (28, 9193230), (30, 8580348), (35, 7354584), (36, 7150290), (40, 6435261), (42, 6128820), (45, 5720232), (54, 4766860), (56, 4596615), (60, 4290174), (63, 4085880), (70, 3677292), (72, 3575145), (79, 3258360), (84, 3064410), (90, 2860116), (105, 2451528), (108, 2383430), (120, 2145087), (126, 2042940), (135, 1906744), (140, 1838646), (158, 1629180), (168, 1532205), (180, 1430058), (189, 1361960), (210, 1225764), (216, 1191715), (237, 1086120), (252, 1021470), (270, 953372), (280, 919323), (315, 817176), (316, 814590), (360, 715029), (378, 680980), (395, 651672), (420, 612882), (431, 597240), (474, 543060), (504, 510735), (540, 476686), (553, 465480), (630, 408588), (632, 407295), (711, 362040), (756, 340490), (790, 325836), (840, 306441), (862, 298620), (945, 272392), (948, 271530), (1080, 238343), (1106, 232740), (1185, 217224), (1260, 204294), (1293, 199080), (1422, 181020), (1512, 170245), (1580, 162918), (1659, 155160), (1724, 149310), (1890, 136196), (1896, 135765), (2133, 120680), (2155, 119448), (2212, 116370), (2370, 108612), (2520, 102147), (2586, 99540), (2765, 93096), (2844, 90510), (3017, 85320), (3160, 81459), (3318, 77580), (3448, 74655), (3555, 72408), (3780, 68098), (3879, 66360), (4266, 60340), (4310, 59724), (4424, 58185), (4740, 54306), (4977, 51720), (5172, 49770), (5530, 46548), (5688, 45255), (6034, 42660), (6465, 39816), (6636, 38790), (7110, 36204), (7560, 34049), (7758, 33180), (8295, 31032), (8532, 30170), (8620, 29862), (9051, 28440), (9480, 27153), (9954, 25860), (10344, 24885), (10665, 24136), (11060, 23274), (11637, 22120), (12068, 21330), (12930, 19908), (13272, 19395), (14220, 18102), (14931, 17240), (15085, 17064), (15516, 16590)]