137985280

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 356146560

約数和(自身を除く): 218161280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 43, 46, 64, 80, 86, 92, 109, 115, 128, 160, 172, 184, 215, 218, 230, 256, 320, 344, 368, 430, 436, 460, 545, 640, 688, 736, 860, 872, 920, 989, 1090, 1280, 1376, 1472, 1720, 1744, 1840, 1978, 2180, 2507, 2752, 2944, 3440, 3488, 3680, 3956, 4360, 4687, 4945, 5014, 5504, 5888, 6880, 6976, 7360, 7912, 8720, 9374, 9890, 10028, 11008, 12535, 13760, 13952, 14720, 15824, 17440, 18748, 19780, 20056, 23435, 25070, 27520, 27904, 29440, 31648, 34880, 37496, 39560, 40112, 46870, 50140, 55040, 63296, 69760, 74992, 79120, 80224, 93740, 100280, 107801, 126592, 139520, 149984, 158240, 160448, 187480, 200560, 215602, 253184, 299968, 316480, 320896, 374960, 401120, 431204, 539005, 599936, 632960, 641792, 749920, 802240, 862408, 1078010, 1199872, 1265920, 1499840, 1604480, 1724816, 2156020, 2999680, 3208960, 3449632, 4312040, 5999360, 6899264, 8624080, 13798528, 17248160, 27597056, 34496320, 68992640, 137985280]

約数ペア:

[(1, 137985280), (2, 68992640), (4, 34496320), (5, 27597056), (8, 17248160), (10, 13798528), (16, 8624080), (20, 6899264), (23, 5999360), (32, 4312040), (40, 3449632), (43, 3208960), (46, 2999680), (64, 2156020), (80, 1724816), (86, 1604480), (92, 1499840), (109, 1265920), (115, 1199872), (128, 1078010), (160, 862408), (172, 802240), (184, 749920), (215, 641792), (218, 632960), (230, 599936), (256, 539005), (320, 431204), (344, 401120), (368, 374960), (430, 320896), (436, 316480), (460, 299968), (545, 253184), (640, 215602), (688, 200560), (736, 187480), (860, 160448), (872, 158240), (920, 149984), (989, 139520), (1090, 126592), (1280, 107801), (1376, 100280), (1472, 93740), (1720, 80224), (1744, 79120), (1840, 74992), (1978, 69760), (2180, 63296), (2507, 55040), (2752, 50140), (2944, 46870), (3440, 40112), (3488, 39560), (3680, 37496), (3956, 34880), (4360, 31648), (4687, 29440), (4945, 27904), (5014, 27520), (5504, 25070), (5888, 23435), (6880, 20056), (6976, 19780), (7360, 18748), (7912, 17440), (8720, 15824), (9374, 14720), (9890, 13952), (10028, 13760), (11008, 12535)]