639103440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:258

約数の個数: 240

約数和(自身を含む): 2180913984

約数和(自身を除く): 1541810544

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 155, 163, 170, 186, 204, 240, 248, 255, 272, 310, 326, 340, 372, 408, 465, 489, 496, 510, 527, 620, 652, 680, 744, 815, 816, 930, 961, 978, 1020, 1054, 1240, 1304, 1360, 1488, 1581, 1630, 1860, 1922, 1956, 2040, 2108, 2445, 2480, 2608, 2635, 2771, 2883, 3162, 3260, 3720, 3844, 3912, 4080, 4216, 4805, 4890, 5053, 5270, 5542, 5766, 6324, 6520, 7440, 7688, 7824, 7905, 8313, 8432, 9610, 9780, 10106, 10540, 11084, 11532, 12648, 13040, 13855, 14415, 15159, 15376, 15810, 16337, 16626, 19220, 19560, 20212, 21080, 22168, 23064, 25265, 25296, 27710, 28830, 30318, 31620, 32674, 33252, 38440, 39120, 40424, 41565, 42160, 44336, 46128, 49011, 50530, 55420, 57660, 60636, 63240, 65348, 66504, 75795, 76880, 80848, 81685, 83130, 85901, 98022, 101060, 110840, 115320, 121272, 126480, 130696, 133008, 151590, 156643, 163370, 166260, 171802, 196044, 202120, 221680, 230640, 242544, 245055, 257703, 261392, 303180, 313286, 326740, 332520, 343604, 392088, 404240, 429505, 469929, 490110, 515406, 606360, 626572, 653480, 665040, 687208, 783215, 784176, 859010, 939858, 980220, 1030812, 1212720, 1253144, 1288515, 1306960, 1374416, 1566430, 1718020, 1879716, 1960440, 2061624, 2349645, 2506288, 2577030, 2662931, 3132860, 3436040, 3759432, 3920880, 4123248, 4699290, 5154060, 5325862, 6265720, 6872080, 7518864, 7988793, 9398580, 10308120, 10651724, 12531440, 13314655, 15977586, 18797160, 20616240, 21303448, 26629310, 31955172, 37594320, 39943965, 42606896, 53258620, 63910344, 79887930, 106517240, 127820688, 159775860, 213034480, 319551720, 639103440]

約数ペア:

[(1, 639103440), (2, 319551720), (3, 213034480), (4, 159775860), (5, 127820688), (6, 106517240), (8, 79887930), (10, 63910344), (12, 53258620), (15, 42606896), (16, 39943965), (17, 37594320), (20, 31955172), (24, 26629310), (30, 21303448), (31, 20616240), (34, 18797160), (40, 15977586), (48, 13314655), (51, 12531440), (60, 10651724), (62, 10308120), (68, 9398580), (80, 7988793), (85, 7518864), (93, 6872080), (102, 6265720), (120, 5325862), (124, 5154060), (136, 4699290), (155, 4123248), (163, 3920880), (170, 3759432), (186, 3436040), (204, 3132860), (240, 2662931), (248, 2577030), (255, 2506288), (272, 2349645), (310, 2061624), (326, 1960440), (340, 1879716), (372, 1718020), (408, 1566430), (465, 1374416), (489, 1306960), (496, 1288515), (510, 1253144), (527, 1212720), (620, 1030812), (652, 980220), (680, 939858), (744, 859010), (815, 784176), (816, 783215), (930, 687208), (961, 665040), (978, 653480), (1020, 626572), (1054, 606360), (1240, 515406), (1304, 490110), (1360, 469929), (1488, 429505), (1581, 404240), (1630, 392088), (1860, 343604), (1922, 332520), (1956, 326740), (2040, 313286), (2108, 303180), (2445, 261392), (2480, 257703), (2608, 245055), (2635, 242544), (2771, 230640), (2883, 221680), (3162, 202120), (3260, 196044), (3720, 171802), (3844, 166260), (3912, 163370), (4080, 156643), (4216, 151590), (4805, 133008), (4890, 130696), (5053, 126480), (5270, 121272), (5542, 115320), (5766, 110840), (6324, 101060), (6520, 98022), (7440, 85901), (7688, 83130), (7824, 81685), (7905, 80848), (8313, 76880), (8432, 75795), (9610, 66504), (9780, 65348), (10106, 63240), (10540, 60636), (11084, 57660), (11532, 55420), (12648, 50530), (13040, 49011), (13855, 46128), (14415, 44336), (15159, 42160), (15376, 41565), (15810, 40424), (16337, 39120), (16626, 38440), (19220, 33252), (19560, 32674), (20212, 31620), (21080, 30318), (22168, 28830), (23064, 27710), (25265, 25296)]