278768280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:398

約数の個数: 256

約数和(自身を含む): 1021870080

約数和(自身を除く): 743101800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 47, 56, 60, 69, 70, 84, 92, 94, 105, 115, 120, 138, 140, 141, 161, 168, 184, 188, 210, 230, 235, 276, 280, 282, 307, 322, 329, 345, 376, 420, 460, 470, 483, 552, 564, 614, 644, 658, 690, 705, 805, 840, 920, 921, 940, 966, 987, 1081, 1128, 1228, 1288, 1316, 1380, 1410, 1535, 1610, 1645, 1842, 1880, 1932, 1974, 2149, 2162, 2415, 2456, 2632, 2760, 2820, 3070, 3220, 3243, 3290, 3684, 3864, 3948, 4298, 4324, 4605, 4830, 4935, 5405, 5640, 6140, 6440, 6447, 6486, 6580, 7061, 7368, 7567, 7896, 8596, 8648, 9210, 9660, 9870, 10745, 10810, 12280, 12894, 12972, 13160, 14122, 14429, 15134, 16215, 17192, 18420, 19320, 19740, 21183, 21490, 21620, 22701, 25788, 25944, 28244, 28858, 30268, 32235, 32430, 35305, 36840, 37835, 39480, 42366, 42980, 43240, 43287, 45402, 49427, 51576, 56488, 57716, 60536, 64470, 64860, 70610, 72145, 75670, 84732, 85960, 86574, 90804, 98854, 101003, 105915, 113505, 115432, 128940, 129720, 141220, 144290, 148281, 151340, 169464, 173148, 181608, 197708, 202006, 211830, 216435, 227010, 247135, 257880, 282440, 288580, 296562, 302680, 303009, 331867, 346296, 395416, 404012, 423660, 432870, 454020, 494270, 505015, 577160, 593124, 606018, 663734, 741405, 808024, 847320, 865740, 908040, 988540, 995601, 1010030, 1186248, 1212036, 1327468, 1482810, 1515045, 1659335, 1731480, 1977080, 1991202, 2020060, 2323069, 2424072, 2654936, 2965620, 3030090, 3318670, 3982404, 4040120, 4646138, 4978005, 5931240, 6060180, 6637340, 6969207, 7964808, 9292276, 9956010, 11615345, 12120360, 13274680, 13938414, 18584552, 19912020, 23230690, 27876828, 34846035, 39824040, 46461380, 55753656, 69692070, 92922760, 139384140, 278768280]

約数ペア:

[(1, 278768280), (2, 139384140), (3, 92922760), (4, 69692070), (5, 55753656), (6, 46461380), (7, 39824040), (8, 34846035), (10, 27876828), (12, 23230690), (14, 19912020), (15, 18584552), (20, 13938414), (21, 13274680), (23, 12120360), (24, 11615345), (28, 9956010), (30, 9292276), (35, 7964808), (40, 6969207), (42, 6637340), (46, 6060180), (47, 5931240), (56, 4978005), (60, 4646138), (69, 4040120), (70, 3982404), (84, 3318670), (92, 3030090), (94, 2965620), (105, 2654936), (115, 2424072), (120, 2323069), (138, 2020060), (140, 1991202), (141, 1977080), (161, 1731480), (168, 1659335), (184, 1515045), (188, 1482810), (210, 1327468), (230, 1212036), (235, 1186248), (276, 1010030), (280, 995601), (282, 988540), (307, 908040), (322, 865740), (329, 847320), (345, 808024), (376, 741405), (420, 663734), (460, 606018), (470, 593124), (483, 577160), (552, 505015), (564, 494270), (614, 454020), (644, 432870), (658, 423660), (690, 404012), (705, 395416), (805, 346296), (840, 331867), (920, 303009), (921, 302680), (940, 296562), (966, 288580), (987, 282440), (1081, 257880), (1128, 247135), (1228, 227010), (1288, 216435), (1316, 211830), (1380, 202006), (1410, 197708), (1535, 181608), (1610, 173148), (1645, 169464), (1842, 151340), (1880, 148281), (1932, 144290), (1974, 141220), (2149, 129720), (2162, 128940), (2415, 115432), (2456, 113505), (2632, 105915), (2760, 101003), (2820, 98854), (3070, 90804), (3220, 86574), (3243, 85960), (3290, 84732), (3684, 75670), (3864, 72145), (3948, 70610), (4298, 64860), (4324, 64470), (4605, 60536), (4830, 57716), (4935, 56488), (5405, 51576), (5640, 49427), (6140, 45402), (6440, 43287), (6447, 43240), (6486, 42980), (6580, 42366), (7061, 39480), (7368, 37835), (7567, 36840), (7896, 35305), (8596, 32430), (8648, 32235), (9210, 30268), (9660, 28858), (9870, 28244), (10745, 25944), (10810, 25788), (12280, 22701), (12894, 21620), (12972, 21490), (13160, 21183), (14122, 19740), (14429, 19320), (15134, 18420), (16215, 17192)]