291261880

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 256

約数和(自身を含む): 870912000

約数和(自身を除く): 579650120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 49, 52, 56, 65, 70, 71, 91, 92, 98, 104, 115, 130, 140, 142, 161, 182, 184, 196, 230, 245, 260, 280, 284, 299, 322, 343, 355, 364, 392, 455, 460, 490, 497, 520, 568, 598, 637, 644, 686, 710, 728, 805, 910, 920, 923, 980, 994, 1127, 1196, 1274, 1288, 1372, 1420, 1495, 1610, 1633, 1715, 1820, 1846, 1960, 1988, 2093, 2254, 2392, 2485, 2548, 2744, 2840, 2990, 3185, 3220, 3266, 3430, 3479, 3640, 3692, 3976, 4186, 4459, 4508, 4615, 4970, 5096, 5635, 5980, 6370, 6440, 6461, 6532, 6860, 6958, 7384, 7889, 8165, 8372, 8918, 9016, 9230, 9940, 10465, 11270, 11431, 11960, 12740, 12922, 13064, 13720, 13916, 14651, 15778, 16330, 16744, 17395, 17836, 18460, 19880, 20930, 21229, 22295, 22540, 22862, 24353, 25480, 25844, 27832, 29302, 31556, 32305, 32660, 34790, 35672, 36920, 39445, 41860, 42458, 44590, 45080, 45227, 45724, 48706, 51688, 57155, 58604, 63112, 64610, 65320, 69580, 73255, 78890, 80017, 83720, 84916, 89180, 90454, 91448, 97412, 102557, 106145, 114310, 117208, 121765, 129220, 139160, 146510, 148603, 157780, 160034, 169832, 178360, 180908, 194824, 205114, 212290, 226135, 228620, 243530, 258440, 293020, 297206, 315560, 316589, 320068, 361816, 400085, 410228, 424580, 452270, 457240, 487060, 512785, 560119, 586040, 594412, 633178, 640136, 743015, 800170, 820456, 849160, 904540, 974120, 1025570, 1040221, 1120238, 1188824, 1266356, 1486030, 1582945, 1600340, 1809080, 2051140, 2080442, 2240476, 2532712, 2800595, 2972060, 3165890, 3200680, 4102280, 4160884, 4480952, 5201105, 5601190, 5944120, 6331780, 7281547, 8321768, 10402210, 11202380, 12663560, 14563094, 20804420, 22404760, 29126188, 36407735, 41608840, 58252376, 72815470, 145630940, 291261880]

約数ペア:

[(1, 291261880), (2, 145630940), (4, 72815470), (5, 58252376), (7, 41608840), (8, 36407735), (10, 29126188), (13, 22404760), (14, 20804420), (20, 14563094), (23, 12663560), (26, 11202380), (28, 10402210), (35, 8321768), (40, 7281547), (46, 6331780), (49, 5944120), (52, 5601190), (56, 5201105), (65, 4480952), (70, 4160884), (71, 4102280), (91, 3200680), (92, 3165890), (98, 2972060), (104, 2800595), (115, 2532712), (130, 2240476), (140, 2080442), (142, 2051140), (161, 1809080), (182, 1600340), (184, 1582945), (196, 1486030), (230, 1266356), (245, 1188824), (260, 1120238), (280, 1040221), (284, 1025570), (299, 974120), (322, 904540), (343, 849160), (355, 820456), (364, 800170), (392, 743015), (455, 640136), (460, 633178), (490, 594412), (497, 586040), (520, 560119), (568, 512785), (598, 487060), (637, 457240), (644, 452270), (686, 424580), (710, 410228), (728, 400085), (805, 361816), (910, 320068), (920, 316589), (923, 315560), (980, 297206), (994, 293020), (1127, 258440), (1196, 243530), (1274, 228620), (1288, 226135), (1372, 212290), (1420, 205114), (1495, 194824), (1610, 180908), (1633, 178360), (1715, 169832), (1820, 160034), (1846, 157780), (1960, 148603), (1988, 146510), (2093, 139160), (2254, 129220), (2392, 121765), (2485, 117208), (2548, 114310), (2744, 106145), (2840, 102557), (2990, 97412), (3185, 91448), (3220, 90454), (3266, 89180), (3430, 84916), (3479, 83720), (3640, 80017), (3692, 78890), (3976, 73255), (4186, 69580), (4459, 65320), (4508, 64610), (4615, 63112), (4970, 58604), (5096, 57155), (5635, 51688), (5980, 48706), (6370, 45724), (6440, 45227), (6461, 45080), (6532, 44590), (6860, 42458), (6958, 41860), (7384, 39445), (7889, 36920), (8165, 35672), (8372, 34790), (8918, 32660), (9016, 32305), (9230, 31556), (9940, 29302), (10465, 27832), (11270, 25844), (11431, 25480), (11960, 24353), (12740, 22862), (12922, 22540), (13064, 22295), (13720, 21229), (13916, 20930), (14651, 19880), (15778, 18460), (16330, 17836), (16744, 17395)]