281221920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1264

約数の個数: 288

約数和(自身を含む): 1145394432

約数和(自身を除く): 864172512

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 32, 35, 36, 40, 42, 45, 46, 48, 56, 60, 63, 69, 70, 72, 80, 84, 90, 92, 96, 105, 112, 115, 120, 126, 138, 140, 144, 160, 161, 168, 180, 184, 207, 210, 224, 230, 240, 252, 276, 280, 288, 315, 322, 336, 345, 360, 368, 414, 420, 460, 480, 483, 504, 552, 560, 630, 644, 672, 690, 720, 736, 805, 828, 840, 920, 966, 1008, 1035, 1104, 1120, 1213, 1260, 1288, 1380, 1440, 1449, 1610, 1656, 1680, 1840, 1932, 2016, 2070, 2208, 2415, 2426, 2520, 2576, 2760, 2898, 3220, 3312, 3360, 3639, 3680, 3864, 4140, 4830, 4852, 5040, 5152, 5520, 5796, 6065, 6440, 6624, 7245, 7278, 7728, 8280, 8491, 9660, 9704, 10080, 10917, 11040, 11592, 12130, 12880, 14490, 14556, 15456, 16560, 16982, 18195, 19320, 19408, 21834, 23184, 24260, 25473, 25760, 27899, 28980, 29112, 33120, 33964, 36390, 38640, 38816, 42455, 43668, 46368, 48520, 50946, 54585, 55798, 57960, 58224, 67928, 72780, 76419, 77280, 83697, 84910, 87336, 97040, 101892, 109170, 111596, 115920, 116448, 127365, 135856, 139495, 145560, 152838, 167394, 169820, 174672, 194080, 195293, 203784, 218340, 223192, 231840, 251091, 254730, 271712, 278990, 291120, 305676, 334788, 339640, 349344, 382095, 390586, 407568, 418485, 436680, 446384, 502182, 509460, 557980, 582240, 585879, 611352, 669576, 679280, 764190, 781172, 815136, 836970, 873360, 892768, 976465, 1004364, 1018920, 1115960, 1171758, 1222704, 1255455, 1339152, 1358560, 1528380, 1562344, 1673940, 1746720, 1757637, 1952930, 2008728, 2037840, 2231920, 2343516, 2445408, 2510910, 2678304, 2929395, 3056760, 3124688, 3347880, 3515274, 3905860, 4017456, 4075680, 4463840, 4687032, 5021820, 5858790, 6113520, 6249376, 6695760, 7030548, 7811720, 8034912, 8788185, 9374064, 10043640, 11717580, 12227040, 13391520, 14061096, 15623440, 17576370, 18748128, 20087280, 23435160, 28122192, 31246880, 35152740, 40174560, 46870320, 56244384, 70305480, 93740640, 140610960, 281221920]

約数ペア:

[(1, 281221920), (2, 140610960), (3, 93740640), (4, 70305480), (5, 56244384), (6, 46870320), (7, 40174560), (8, 35152740), (9, 31246880), (10, 28122192), (12, 23435160), (14, 20087280), (15, 18748128), (16, 17576370), (18, 15623440), (20, 14061096), (21, 13391520), (23, 12227040), (24, 11717580), (28, 10043640), (30, 9374064), (32, 8788185), (35, 8034912), (36, 7811720), (40, 7030548), (42, 6695760), (45, 6249376), (46, 6113520), (48, 5858790), (56, 5021820), (60, 4687032), (63, 4463840), (69, 4075680), (70, 4017456), (72, 3905860), (80, 3515274), (84, 3347880), (90, 3124688), (92, 3056760), (96, 2929395), (105, 2678304), (112, 2510910), (115, 2445408), (120, 2343516), (126, 2231920), (138, 2037840), (140, 2008728), (144, 1952930), (160, 1757637), (161, 1746720), (168, 1673940), (180, 1562344), (184, 1528380), (207, 1358560), (210, 1339152), (224, 1255455), (230, 1222704), (240, 1171758), (252, 1115960), (276, 1018920), (280, 1004364), (288, 976465), (315, 892768), (322, 873360), (336, 836970), (345, 815136), (360, 781172), (368, 764190), (414, 679280), (420, 669576), (460, 611352), (480, 585879), (483, 582240), (504, 557980), (552, 509460), (560, 502182), (630, 446384), (644, 436680), (672, 418485), (690, 407568), (720, 390586), (736, 382095), (805, 349344), (828, 339640), (840, 334788), (920, 305676), (966, 291120), (1008, 278990), (1035, 271712), (1104, 254730), (1120, 251091), (1213, 231840), (1260, 223192), (1288, 218340), (1380, 203784), (1440, 195293), (1449, 194080), (1610, 174672), (1656, 169820), (1680, 167394), (1840, 152838), (1932, 145560), (2016, 139495), (2070, 135856), (2208, 127365), (2415, 116448), (2426, 115920), (2520, 111596), (2576, 109170), (2760, 101892), (2898, 97040), (3220, 87336), (3312, 84910), (3360, 83697), (3639, 77280), (3680, 76419), (3864, 72780), (4140, 67928), (4830, 58224), (4852, 57960), (5040, 55798), (5152, 54585), (5520, 50946), (5796, 48520), (6065, 46368), (6440, 43668), (6624, 42455), (7245, 38816), (7278, 38640), (7728, 36390), (8280, 33964), (8491, 33120), (9660, 29112), (9704, 28980), (10080, 27899), (10917, 25760), (11040, 25473), (11592, 24260), (12130, 23184), (12880, 21834), (14490, 19408), (14556, 19320), (15456, 18195), (16560, 16982)]