257171040

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:882

約数の個数: 288

約数和(自身を含む): 1036578816

約数和(自身を除く): 779407776

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 32, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 96, 105, 112, 120, 124, 126, 140, 144, 155, 160, 168, 180, 186, 210, 217, 224, 240, 248, 252, 279, 280, 288, 310, 315, 336, 360, 372, 420, 434, 465, 480, 496, 504, 558, 560, 620, 630, 651, 672, 720, 744, 823, 840, 868, 930, 992, 1008, 1085, 1116, 1120, 1240, 1260, 1302, 1395, 1440, 1488, 1646, 1680, 1736, 1860, 1953, 2016, 2170, 2232, 2469, 2480, 2520, 2604, 2790, 2976, 3255, 3292, 3360, 3472, 3720, 3906, 4115, 4340, 4464, 4938, 4960, 5040, 5208, 5580, 5761, 6510, 6584, 6944, 7407, 7440, 7812, 8230, 8680, 8928, 9765, 9876, 10080, 10416, 11160, 11522, 12345, 13020, 13168, 14814, 14880, 15624, 16460, 17283, 17360, 19530, 19752, 20832, 22320, 23044, 24690, 25513, 26040, 26336, 28805, 29628, 31248, 32920, 34566, 34720, 37035, 39060, 39504, 44640, 46088, 49380, 51026, 51849, 52080, 57610, 59256, 62496, 65840, 69132, 74070, 76539, 78120, 79008, 86415, 92176, 98760, 102052, 103698, 104160, 115220, 118512, 127565, 131680, 138264, 148140, 153078, 156240, 172830, 178591, 184352, 197520, 204104, 207396, 229617, 230440, 237024, 255130, 259245, 276528, 296280, 306156, 312480, 345660, 357182, 382695, 395040, 408208, 414792, 459234, 460880, 510260, 518490, 535773, 553056, 592560, 612312, 691320, 714364, 765390, 816416, 829584, 892955, 918468, 921760, 1020520, 1036980, 1071546, 1148085, 1185120, 1224624, 1382640, 1428728, 1530780, 1607319, 1659168, 1785910, 1836936, 2041040, 2073960, 2143092, 2296170, 2449248, 2678865, 2765280, 2857456, 3061560, 3214638, 3571820, 3673872, 4082080, 4147920, 4286184, 4592340, 5357730, 5714912, 6123120, 6429276, 7143640, 7347744, 8036595, 8295840, 8572368, 9184680, 10715460, 12246240, 12858552, 14287280, 16073190, 17144736, 18369360, 21430920, 25717104, 28574560, 32146380, 36738720, 42861840, 51434208, 64292760, 85723680, 128585520, 257171040]

約数ペア:

[(1, 257171040), (2, 128585520), (3, 85723680), (4, 64292760), (5, 51434208), (6, 42861840), (7, 36738720), (8, 32146380), (9, 28574560), (10, 25717104), (12, 21430920), (14, 18369360), (15, 17144736), (16, 16073190), (18, 14287280), (20, 12858552), (21, 12246240), (24, 10715460), (28, 9184680), (30, 8572368), (31, 8295840), (32, 8036595), (35, 7347744), (36, 7143640), (40, 6429276), (42, 6123120), (45, 5714912), (48, 5357730), (56, 4592340), (60, 4286184), (62, 4147920), (63, 4082080), (70, 3673872), (72, 3571820), (80, 3214638), (84, 3061560), (90, 2857456), (93, 2765280), (96, 2678865), (105, 2449248), (112, 2296170), (120, 2143092), (124, 2073960), (126, 2041040), (140, 1836936), (144, 1785910), (155, 1659168), (160, 1607319), (168, 1530780), (180, 1428728), (186, 1382640), (210, 1224624), (217, 1185120), (224, 1148085), (240, 1071546), (248, 1036980), (252, 1020520), (279, 921760), (280, 918468), (288, 892955), (310, 829584), (315, 816416), (336, 765390), (360, 714364), (372, 691320), (420, 612312), (434, 592560), (465, 553056), (480, 535773), (496, 518490), (504, 510260), (558, 460880), (560, 459234), (620, 414792), (630, 408208), (651, 395040), (672, 382695), (720, 357182), (744, 345660), (823, 312480), (840, 306156), (868, 296280), (930, 276528), (992, 259245), (1008, 255130), (1085, 237024), (1116, 230440), (1120, 229617), (1240, 207396), (1260, 204104), (1302, 197520), (1395, 184352), (1440, 178591), (1488, 172830), (1646, 156240), (1680, 153078), (1736, 148140), (1860, 138264), (1953, 131680), (2016, 127565), (2170, 118512), (2232, 115220), (2469, 104160), (2480, 103698), (2520, 102052), (2604, 98760), (2790, 92176), (2976, 86415), (3255, 79008), (3292, 78120), (3360, 76539), (3472, 74070), (3720, 69132), (3906, 65840), (4115, 62496), (4340, 59256), (4464, 57610), (4938, 52080), (4960, 51849), (5040, 51026), (5208, 49380), (5580, 46088), (5761, 44640), (6510, 39504), (6584, 39060), (6944, 37035), (7407, 34720), (7440, 34566), (7812, 32920), (8230, 31248), (8680, 29628), (8928, 28805), (9765, 26336), (9876, 26040), (10080, 25513), (10416, 24690), (11160, 23044), (11522, 22320), (12345, 20832), (13020, 19752), (13168, 19530), (14814, 17360), (14880, 17283), (15624, 16460)]