389949840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^3\times {\mathrm{1579}}^1$

素因数の和:1619

約数の個数: 240

約数和(自身を含む): 1528176000

約数和(自身を除く): 1138226160

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, 343, 360, 392, 420, 441, 490, 504, 560, 588, 630, 686, 720, 735, 784, 840, 882, 980, 1008, 1029, 1176, 1260, 1372, 1470, 1579, 1680, 1715, 1764, 1960, 2058, 2205, 2352, 2520, 2744, 2940, 3087, 3158, 3430, 3528, 3920, 4116, 4410, 4737, 5040, 5145, 5488, 5880, 6174, 6316, 6860, 7056, 7895, 8232, 8820, 9474, 10290, 11053, 11760, 12348, 12632, 13720, 14211, 15435, 15790, 16464, 17640, 18948, 20580, 22106, 23685, 24696, 25264, 27440, 28422, 30870, 31580, 33159, 35280, 37896, 41160, 44212, 47370, 49392, 55265, 56844, 61740, 63160, 66318, 71055, 75792, 77371, 82320, 88424, 94740, 99477, 110530, 113688, 123480, 126320, 132636, 142110, 154742, 165795, 176848, 189480, 198954, 221060, 227376, 232113, 246960, 265272, 284220, 309484, 331590, 378960, 386855, 397908, 442120, 464226, 497385, 530544, 541597, 568440, 618968, 663180, 696339, 773710, 795816, 884240, 928452, 994770, 1083194, 1136880, 1160565, 1237936, 1326360, 1392678, 1547420, 1591632, 1624791, 1856904, 1989540, 2166388, 2321130, 2652720, 2707985, 2785356, 3094840, 3249582, 3481695, 3713808, 3979080, 4332776, 4642260, 4874373, 5415970, 5570712, 6189680, 6499164, 6963390, 7958160, 8123955, 8665552, 9284520, 9748746, 10831940, 11141424, 12998328, 13926780, 16247910, 18569040, 19497492, 21663880, 24371865, 25996656, 27853560, 32495820, 38994984, 43327760, 48743730, 55707120, 64991640, 77989968, 97487460, 129983280, 194974920, 389949840]

約数ペア:

[(1, 389949840), (2, 194974920), (3, 129983280), (4, 97487460), (5, 77989968), (6, 64991640), (7, 55707120), (8, 48743730), (9, 43327760), (10, 38994984), (12, 32495820), (14, 27853560), (15, 25996656), (16, 24371865), (18, 21663880), (20, 19497492), (21, 18569040), (24, 16247910), (28, 13926780), (30, 12998328), (35, 11141424), (36, 10831940), (40, 9748746), (42, 9284520), (45, 8665552), (48, 8123955), (49, 7958160), (56, 6963390), (60, 6499164), (63, 6189680), (70, 5570712), (72, 5415970), (80, 4874373), (84, 4642260), (90, 4332776), (98, 3979080), (105, 3713808), (112, 3481695), (120, 3249582), (126, 3094840), (140, 2785356), (144, 2707985), (147, 2652720), (168, 2321130), (180, 2166388), (196, 1989540), (210, 1856904), (240, 1624791), (245, 1591632), (252, 1547420), (280, 1392678), (294, 1326360), (315, 1237936), (336, 1160565), (343, 1136880), (360, 1083194), (392, 994770), (420, 928452), (441, 884240), (490, 795816), (504, 773710), (560, 696339), (588, 663180), (630, 618968), (686, 568440), (720, 541597), (735, 530544), (784, 497385), (840, 464226), (882, 442120), (980, 397908), (1008, 386855), (1029, 378960), (1176, 331590), (1260, 309484), (1372, 284220), (1470, 265272), (1579, 246960), (1680, 232113), (1715, 227376), (1764, 221060), (1960, 198954), (2058, 189480), (2205, 176848), (2352, 165795), (2520, 154742), (2744, 142110), (2940, 132636), (3087, 126320), (3158, 123480), (3430, 113688), (3528, 110530), (3920, 99477), (4116, 94740), (4410, 88424), (4737, 82320), (5040, 77371), (5145, 75792), (5488, 71055), (5880, 66318), (6174, 63160), (6316, 61740), (6860, 56844), (7056, 55265), (7895, 49392), (8232, 47370), (8820, 44212), (9474, 41160), (10290, 37896), (11053, 35280), (11760, 33159), (12348, 31580), (12632, 30870), (13720, 28422), (14211, 27440), (15435, 25264), (15790, 24696), (16464, 23685), (17640, 22106), (18948, 20580)]