128585520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:880

約数の個数: 240

約数和(自身を含む): 510062592

約数和(自身を除く): 381477072

約数列:

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

約数ペア:

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