1278361440

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{98639}}^1$

素因数の和:98666

約数の個数: 120

約数和(自身を含む): 4511596320

約数和(自身を除く): 3233234880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 12960, 98639, 197278, 295917, 394556, 493195, 591834, 789112, 887751, 986390, 1183668, 1479585, 1578224, 1775502, 1972780, 2367336, 2663253, 2959170, 3156448, 3551004, 3945560, 4438755, 4734672, 5326506, 5918340, 7102008, 7891120, 7989759, 8877510, 9469344, 10653012, 11836680, 13316265, 14204016, 15782240, 15979518, 17755020, 21306024, 23673360, 26632530, 28408032, 31959036, 35510040, 39948795, 42612048, 47346720, 53265060, 63918072, 71020080, 79897590, 85224096, 106530120, 127836144, 142040160, 159795180, 213060240, 255672288, 319590360, 426120480, 639180720, 1278361440]

約数ペア:

[(1, 1278361440), (2, 639180720), (3, 426120480), (4, 319590360), (5, 255672288), (6, 213060240), (8, 159795180), (9, 142040160), (10, 127836144), (12, 106530120), (15, 85224096), (16, 79897590), (18, 71020080), (20, 63918072), (24, 53265060), (27, 47346720), (30, 42612048), (32, 39948795), (36, 35510040), (40, 31959036), (45, 28408032), (48, 26632530), (54, 23673360), (60, 21306024), (72, 17755020), (80, 15979518), (81, 15782240), (90, 14204016), (96, 13316265), (108, 11836680), (120, 10653012), (135, 9469344), (144, 8877510), (160, 7989759), (162, 7891120), (180, 7102008), (216, 5918340), (240, 5326506), (270, 4734672), (288, 4438755), (324, 3945560), (360, 3551004), (405, 3156448), (432, 2959170), (480, 2663253), (540, 2367336), (648, 1972780), (720, 1775502), (810, 1578224), (864, 1479585), (1080, 1183668), (1296, 986390), (1440, 887751), (1620, 789112), (2160, 591834), (2592, 493195), (3240, 394556), (4320, 295917), (6480, 197278), (12960, 98639)]