131239440

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 240

約数和(自身を含む): 470678208

約数和(自身を除く): 339438768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 43, 45, 48, 54, 60, 72, 80, 81, 86, 90, 108, 120, 129, 135, 144, 157, 162, 172, 180, 215, 216, 240, 243, 258, 270, 314, 324, 344, 360, 387, 405, 430, 432, 471, 486, 516, 540, 628, 645, 648, 688, 720, 774, 785, 810, 860, 942, 972, 1032, 1080, 1161, 1215, 1256, 1290, 1296, 1413, 1548, 1570, 1620, 1720, 1884, 1935, 1944, 2064, 2160, 2322, 2355, 2430, 2512, 2580, 2826, 3096, 3140, 3240, 3440, 3483, 3768, 3870, 3888, 4239, 4644, 4710, 4860, 5160, 5652, 5805, 6192, 6280, 6480, 6751, 6966, 7065, 7536, 7740, 8478, 9288, 9420, 9720, 10320, 10449, 11304, 11610, 12560, 12717, 13502, 13932, 14130, 15480, 16956, 17415, 18576, 18840, 19440, 20253, 20898, 21195, 22608, 23220, 25434, 27004, 27864, 28260, 30960, 33755, 33912, 34830, 37680, 38151, 40506, 41796, 42390, 46440, 50868, 52245, 54008, 55728, 56520, 60759, 63585, 67510, 67824, 69660, 76302, 81012, 83592, 84780, 92880, 101265, 101736, 104490, 108016, 113040, 121518, 127170, 135020, 139320, 152604, 162024, 167184, 169560, 182277, 190755, 202530, 203472, 208980, 243036, 254340, 270040, 278640, 303795, 305208, 324048, 339120, 364554, 381510, 405060, 417960, 486072, 508680, 540080, 546831, 607590, 610416, 729108, 763020, 810120, 835920, 911385, 972144, 1017360, 1093662, 1215180, 1458216, 1526040, 1620240, 1640493, 1822770, 2187324, 2430360, 2734155, 2916432, 3052080, 3280986, 3645540, 4374648, 4860720, 5468310, 6561972, 7291080, 8202465, 8749296, 10936620, 13123944, 14582160, 16404930, 21873240, 26247888, 32809860, 43746480, 65619720, 131239440]

約数ペア:

[(1, 131239440), (2, 65619720), (3, 43746480), (4, 32809860), (5, 26247888), (6, 21873240), (8, 16404930), (9, 14582160), (10, 13123944), (12, 10936620), (15, 8749296), (16, 8202465), (18, 7291080), (20, 6561972), (24, 5468310), (27, 4860720), (30, 4374648), (36, 3645540), (40, 3280986), (43, 3052080), (45, 2916432), (48, 2734155), (54, 2430360), (60, 2187324), (72, 1822770), (80, 1640493), (81, 1620240), (86, 1526040), (90, 1458216), (108, 1215180), (120, 1093662), (129, 1017360), (135, 972144), (144, 911385), (157, 835920), (162, 810120), (172, 763020), (180, 729108), (215, 610416), (216, 607590), (240, 546831), (243, 540080), (258, 508680), (270, 486072), (314, 417960), (324, 405060), (344, 381510), (360, 364554), (387, 339120), (405, 324048), (430, 305208), (432, 303795), (471, 278640), (486, 270040), (516, 254340), (540, 243036), (628, 208980), (645, 203472), (648, 202530), (688, 190755), (720, 182277), (774, 169560), (785, 167184), (810, 162024), (860, 152604), (942, 139320), (972, 135020), (1032, 127170), (1080, 121518), (1161, 113040), (1215, 108016), (1256, 104490), (1290, 101736), (1296, 101265), (1413, 92880), (1548, 84780), (1570, 83592), (1620, 81012), (1720, 76302), (1884, 69660), (1935, 67824), (1944, 67510), (2064, 63585), (2160, 60759), (2322, 56520), (2355, 55728), (2430, 54008), (2512, 52245), (2580, 50868), (2826, 46440), (3096, 42390), (3140, 41796), (3240, 40506), (3440, 38151), (3483, 37680), (3768, 34830), (3870, 33912), (3888, 33755), (4239, 30960), (4644, 28260), (4710, 27864), (4860, 27004), (5160, 25434), (5652, 23220), (5805, 22608), (6192, 21195), (6280, 20898), (6480, 20253), (6751, 19440), (6966, 18840), (7065, 18576), (7536, 17415), (7740, 16956), (8478, 15480), (9288, 14130), (9420, 13932), (9720, 13502), (10320, 12717), (10449, 12560), (11304, 11610)]