281993040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{7993}}^1$

素因数の和:8026

約数の個数: 180

約数和(自身を含む): 1101781044

約数和(自身を除く): 819788004

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, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 7993, 8820, 11760, 15986, 17640, 23979, 31972, 35280, 39965, 47958, 55951, 63944, 71937, 79930, 95916, 111902, 119895, 127888, 143874, 159860, 167853, 191832, 223804, 239790, 279755, 287748, 319720, 335706, 359685, 383664, 391657, 447608, 479580, 503559, 559510, 575496, 639440, 671412, 719370, 783314, 839265, 895216, 959160, 1007118, 1119020, 1150992, 1174971, 1342824, 1438740, 1566628, 1678530, 1918320, 1958285, 2014236, 2238040, 2349942, 2517795, 2685648, 2877480, 3133256, 3357060, 3524913, 3916570, 4028472, 4476080, 4699884, 5035590, 5754960, 5874855, 6266512, 6714120, 7049826, 7833140, 8056944, 9399768, 10071180, 11749710, 13428240, 14099652, 15666280, 17624565, 18799536, 20142360, 23499420, 28199304, 31332560, 35249130, 40284720, 46998840, 56398608, 70498260, 93997680, 140996520, 281993040]

約数ペア:

[(1, 281993040), (2, 140996520), (3, 93997680), (4, 70498260), (5, 56398608), (6, 46998840), (7, 40284720), (8, 35249130), (9, 31332560), (10, 28199304), (12, 23499420), (14, 20142360), (15, 18799536), (16, 17624565), (18, 15666280), (20, 14099652), (21, 13428240), (24, 11749710), (28, 10071180), (30, 9399768), (35, 8056944), (36, 7833140), (40, 7049826), (42, 6714120), (45, 6266512), (48, 5874855), (49, 5754960), (56, 5035590), (60, 4699884), (63, 4476080), (70, 4028472), (72, 3916570), (80, 3524913), (84, 3357060), (90, 3133256), (98, 2877480), (105, 2685648), (112, 2517795), (120, 2349942), (126, 2238040), (140, 2014236), (144, 1958285), (147, 1918320), (168, 1678530), (180, 1566628), (196, 1438740), (210, 1342824), (240, 1174971), (245, 1150992), (252, 1119020), (280, 1007118), (294, 959160), (315, 895216), (336, 839265), (360, 783314), (392, 719370), (420, 671412), (441, 639440), (490, 575496), (504, 559510), (560, 503559), (588, 479580), (630, 447608), (720, 391657), (735, 383664), (784, 359685), (840, 335706), (882, 319720), (980, 287748), (1008, 279755), (1176, 239790), (1260, 223804), (1470, 191832), (1680, 167853), (1764, 159860), (1960, 143874), (2205, 127888), (2352, 119895), (2520, 111902), (2940, 95916), (3528, 79930), (3920, 71937), (4410, 63944), (5040, 55951), (5880, 47958), (7056, 39965), (7993, 35280), (8820, 31972), (11760, 23979), (15986, 17640)]