257456160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:860

約数の個数: 288

約数和(自身を含む): 1003045680

約数和(自身を除く): 745589520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 32, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 96, 102, 104, 117, 120, 130, 136, 144, 153, 156, 160, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 288, 306, 312, 340, 360, 390, 408, 416, 442, 468, 480, 510, 520, 544, 585, 612, 624, 663, 680, 720, 765, 780, 809, 816, 884, 936, 1020, 1040, 1105, 1170, 1224, 1248, 1326, 1360, 1440, 1530, 1560, 1618, 1632, 1768, 1872, 1989, 2040, 2080, 2210, 2340, 2427, 2448, 2652, 2720, 3060, 3120, 3236, 3315, 3536, 3744, 3978, 4045, 4080, 4420, 4680, 4854, 4896, 5304, 6120, 6240, 6472, 6630, 7072, 7281, 7956, 8090, 8160, 8840, 9360, 9708, 9945, 10517, 10608, 12135, 12240, 12944, 13260, 13753, 14562, 15912, 16180, 17680, 18720, 19416, 19890, 21034, 21216, 24270, 24480, 25888, 26520, 27506, 29124, 31551, 31824, 32360, 35360, 36405, 38832, 39780, 41259, 42068, 48540, 52585, 53040, 55012, 58248, 63102, 63648, 64720, 68765, 72810, 77664, 79560, 82518, 84136, 94653, 97080, 105170, 106080, 110024, 116496, 123777, 126204, 129440, 137530, 145620, 157755, 159120, 165036, 168272, 178789, 189306, 194160, 206295, 210340, 220048, 232992, 247554, 252408, 275060, 291240, 315510, 318240, 330072, 336544, 357578, 378612, 388320, 412590, 420680, 440096, 473265, 495108, 504816, 536367, 550120, 582480, 618885, 631020, 660144, 715156, 757224, 825180, 841360, 893945, 946530, 990216, 1009632, 1072734, 1100240, 1164960, 1237770, 1262040, 1320288, 1430312, 1514448, 1609101, 1650360, 1682720, 1787890, 1893060, 1980432, 2145468, 2200480, 2475540, 2524080, 2681835, 2860624, 3028896, 3218202, 3300720, 3575780, 3786120, 3960864, 4290936, 4951080, 5048160, 5363670, 5721248, 6436404, 6601440, 7151560, 7572240, 8045505, 8581872, 9902160, 10727340, 12872808, 14303120, 15144480, 16091010, 17163744, 19804320, 21454680, 25745616, 28606240, 32182020, 42909360, 51491232, 64364040, 85818720, 128728080, 257456160]

約数ペア:

[(1, 257456160), (2, 128728080), (3, 85818720), (4, 64364040), (5, 51491232), (6, 42909360), (8, 32182020), (9, 28606240), (10, 25745616), (12, 21454680), (13, 19804320), (15, 17163744), (16, 16091010), (17, 15144480), (18, 14303120), (20, 12872808), (24, 10727340), (26, 9902160), (30, 8581872), (32, 8045505), (34, 7572240), (36, 7151560), (39, 6601440), (40, 6436404), (45, 5721248), (48, 5363670), (51, 5048160), (52, 4951080), (60, 4290936), (65, 3960864), (68, 3786120), (72, 3575780), (78, 3300720), (80, 3218202), (85, 3028896), (90, 2860624), (96, 2681835), (102, 2524080), (104, 2475540), (117, 2200480), (120, 2145468), (130, 1980432), (136, 1893060), (144, 1787890), (153, 1682720), (156, 1650360), (160, 1609101), (170, 1514448), (180, 1430312), (195, 1320288), (204, 1262040), (208, 1237770), (221, 1164960), (234, 1100240), (240, 1072734), (255, 1009632), (260, 990216), (272, 946530), (288, 893945), (306, 841360), (312, 825180), (340, 757224), (360, 715156), (390, 660144), (408, 631020), (416, 618885), (442, 582480), (468, 550120), (480, 536367), (510, 504816), (520, 495108), (544, 473265), (585, 440096), (612, 420680), (624, 412590), (663, 388320), (680, 378612), (720, 357578), (765, 336544), (780, 330072), (809, 318240), (816, 315510), (884, 291240), (936, 275060), (1020, 252408), (1040, 247554), (1105, 232992), (1170, 220048), (1224, 210340), (1248, 206295), (1326, 194160), (1360, 189306), (1440, 178789), (1530, 168272), (1560, 165036), (1618, 159120), (1632, 157755), (1768, 145620), (1872, 137530), (1989, 129440), (2040, 126204), (2080, 123777), (2210, 116496), (2340, 110024), (2427, 106080), (2448, 105170), (2652, 97080), (2720, 94653), (3060, 84136), (3120, 82518), (3236, 79560), (3315, 77664), (3536, 72810), (3744, 68765), (3978, 64720), (4045, 63648), (4080, 63102), (4420, 58248), (4680, 55012), (4854, 53040), (4896, 52585), (5304, 48540), (6120, 42068), (6240, 41259), (6472, 39780), (6630, 38832), (7072, 36405), (7281, 35360), (7956, 32360), (8090, 31824), (8160, 31551), (8840, 29124), (9360, 27506), (9708, 26520), (9945, 25888), (10517, 24480), (10608, 24270), (12135, 21216), (12240, 21034), (12944, 19890), (13260, 19416), (13753, 18720), (14562, 17680), (15912, 16180)]