278801280

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:621

約数の個数: 192

約数和(自身を含む): 974610000

約数和(自身を除く): 695808720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 97, 120, 128, 144, 160, 180, 192, 194, 240, 288, 291, 320, 360, 384, 388, 480, 485, 499, 576, 582, 640, 720, 776, 873, 960, 970, 998, 1152, 1164, 1440, 1455, 1497, 1552, 1746, 1920, 1940, 1996, 2328, 2495, 2880, 2910, 2994, 3104, 3492, 3880, 3992, 4365, 4491, 4656, 4990, 5760, 5820, 5988, 6208, 6984, 7485, 7760, 7984, 8730, 8982, 9312, 9980, 11640, 11976, 12416, 13968, 14970, 15520, 15968, 17460, 17964, 18624, 19960, 22455, 23280, 23952, 27936, 29940, 31040, 31936, 34920, 35928, 37248, 39920, 44910, 46560, 47904, 48403, 55872, 59880, 62080, 63872, 69840, 71856, 79840, 89820, 93120, 95808, 96806, 111744, 119760, 139680, 143712, 145209, 159680, 179640, 186240, 191616, 193612, 239520, 242015, 279360, 287424, 290418, 319360, 359280, 387224, 435627, 479040, 484030, 558720, 574848, 580836, 718560, 726045, 774448, 871254, 958080, 968060, 1161672, 1437120, 1452090, 1548896, 1742508, 1936120, 2178135, 2323344, 2874240, 2904180, 3097792, 3485016, 3872240, 4356270, 4646688, 5808360, 6195584, 6970032, 7744480, 8712540, 9293376, 11616720, 13940064, 15488960, 17425080, 18586752, 23233440, 27880128, 30977920, 34850160, 46466880, 55760256, 69700320, 92933760, 139400640, 278801280]

約数ペア:

[(1, 278801280), (2, 139400640), (3, 92933760), (4, 69700320), (5, 55760256), (6, 46466880), (8, 34850160), (9, 30977920), (10, 27880128), (12, 23233440), (15, 18586752), (16, 17425080), (18, 15488960), (20, 13940064), (24, 11616720), (30, 9293376), (32, 8712540), (36, 7744480), (40, 6970032), (45, 6195584), (48, 5808360), (60, 4646688), (64, 4356270), (72, 3872240), (80, 3485016), (90, 3097792), (96, 2904180), (97, 2874240), (120, 2323344), (128, 2178135), (144, 1936120), (160, 1742508), (180, 1548896), (192, 1452090), (194, 1437120), (240, 1161672), (288, 968060), (291, 958080), (320, 871254), (360, 774448), (384, 726045), (388, 718560), (480, 580836), (485, 574848), (499, 558720), (576, 484030), (582, 479040), (640, 435627), (720, 387224), (776, 359280), (873, 319360), (960, 290418), (970, 287424), (998, 279360), (1152, 242015), (1164, 239520), (1440, 193612), (1455, 191616), (1497, 186240), (1552, 179640), (1746, 159680), (1920, 145209), (1940, 143712), (1996, 139680), (2328, 119760), (2495, 111744), (2880, 96806), (2910, 95808), (2994, 93120), (3104, 89820), (3492, 79840), (3880, 71856), (3992, 69840), (4365, 63872), (4491, 62080), (4656, 59880), (4990, 55872), (5760, 48403), (5820, 47904), (5988, 46560), (6208, 44910), (6984, 39920), (7485, 37248), (7760, 35928), (7984, 34920), (8730, 31936), (8982, 31040), (9312, 29940), (9980, 27936), (11640, 23952), (11976, 23280), (12416, 22455), (13968, 19960), (14970, 18624), (15520, 17964), (15968, 17460)]