281085840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1297}}^1$

素因数の和:1366

約数の個数: 240

約数和(自身を含む): 1104774528

約数和(自身を除く): 823688688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 48, 56, 60, 63, 70, 72, 80, 84, 86, 90, 105, 112, 120, 126, 129, 140, 144, 168, 172, 180, 210, 215, 240, 252, 258, 280, 301, 315, 336, 344, 360, 387, 420, 430, 504, 516, 560, 602, 630, 645, 688, 720, 774, 840, 860, 903, 1008, 1032, 1204, 1260, 1290, 1297, 1505, 1548, 1680, 1720, 1806, 1935, 2064, 2408, 2520, 2580, 2594, 2709, 3010, 3096, 3440, 3612, 3870, 3891, 4515, 4816, 5040, 5160, 5188, 5418, 6020, 6192, 6485, 7224, 7740, 7782, 9030, 9079, 10320, 10376, 10836, 11673, 12040, 12970, 13545, 14448, 15480, 15564, 18060, 18158, 19455, 20752, 21672, 23346, 24080, 25940, 27090, 27237, 30960, 31128, 36120, 36316, 38910, 43344, 45395, 46692, 51880, 54180, 54474, 55771, 58365, 62256, 72240, 72632, 77820, 81711, 90790, 93384, 103760, 108360, 108948, 111542, 116730, 136185, 145264, 155640, 163422, 167313, 181580, 186768, 216720, 217896, 223084, 233460, 272370, 278855, 311280, 326844, 334626, 363160, 390397, 408555, 435792, 446168, 466920, 501939, 544740, 557710, 653688, 669252, 726320, 780794, 817110, 836565, 892336, 933840, 1003878, 1089480, 1115420, 1171191, 1307376, 1338504, 1561588, 1634220, 1673130, 1951985, 2007756, 2178960, 2230840, 2342382, 2509695, 2677008, 3123176, 3268440, 3346260, 3513573, 3903970, 4015512, 4461680, 4684764, 5019390, 5855955, 6246352, 6536880, 6692520, 7027146, 7807940, 8031024, 9369528, 10038780, 11711910, 13385040, 14054292, 15615880, 17567865, 18739056, 20077560, 23423820, 28108584, 31231760, 35135730, 40155120, 46847640, 56217168, 70271460, 93695280, 140542920, 281085840]

約数ペア:

[(1, 281085840), (2, 140542920), (3, 93695280), (4, 70271460), (5, 56217168), (6, 46847640), (7, 40155120), (8, 35135730), (9, 31231760), (10, 28108584), (12, 23423820), (14, 20077560), (15, 18739056), (16, 17567865), (18, 15615880), (20, 14054292), (21, 13385040), (24, 11711910), (28, 10038780), (30, 9369528), (35, 8031024), (36, 7807940), (40, 7027146), (42, 6692520), (43, 6536880), (45, 6246352), (48, 5855955), (56, 5019390), (60, 4684764), (63, 4461680), (70, 4015512), (72, 3903970), (80, 3513573), (84, 3346260), (86, 3268440), (90, 3123176), (105, 2677008), (112, 2509695), (120, 2342382), (126, 2230840), (129, 2178960), (140, 2007756), (144, 1951985), (168, 1673130), (172, 1634220), (180, 1561588), (210, 1338504), (215, 1307376), (240, 1171191), (252, 1115420), (258, 1089480), (280, 1003878), (301, 933840), (315, 892336), (336, 836565), (344, 817110), (360, 780794), (387, 726320), (420, 669252), (430, 653688), (504, 557710), (516, 544740), (560, 501939), (602, 466920), (630, 446168), (645, 435792), (688, 408555), (720, 390397), (774, 363160), (840, 334626), (860, 326844), (903, 311280), (1008, 278855), (1032, 272370), (1204, 233460), (1260, 223084), (1290, 217896), (1297, 216720), (1505, 186768), (1548, 181580), (1680, 167313), (1720, 163422), (1806, 155640), (1935, 145264), (2064, 136185), (2408, 116730), (2520, 111542), (2580, 108948), (2594, 108360), (2709, 103760), (3010, 93384), (3096, 90790), (3440, 81711), (3612, 77820), (3870, 72632), (3891, 72240), (4515, 62256), (4816, 58365), (5040, 55771), (5160, 54474), (5188, 54180), (5418, 51880), (6020, 46692), (6192, 45395), (6485, 43344), (7224, 38910), (7740, 36316), (7782, 36120), (9030, 31128), (9079, 30960), (10320, 27237), (10376, 27090), (10836, 25940), (11673, 24080), (12040, 23346), (12970, 21672), (13545, 20752), (14448, 19455), (15480, 18158), (15564, 18060)]