128794960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{659}}^1$

素因数の和:1028

約数の個数: 80

約数和(自身を含む): 343728000

約数和(自身を除く): 214933040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 349, 560, 659, 698, 1318, 1396, 1745, 2443, 2636, 2792, 3295, 3490, 4613, 4886, 5272, 5584, 6590, 6980, 9226, 9772, 10544, 12215, 13180, 13960, 18452, 19544, 23065, 24430, 26360, 27920, 36904, 39088, 46130, 48860, 52720, 73808, 92260, 97720, 184520, 195440, 229991, 369040, 459982, 919964, 1149955, 1609937, 1839928, 2299910, 3219874, 3679856, 4599820, 6439748, 8049685, 9199640, 12879496, 16099370, 18399280, 25758992, 32198740, 64397480, 128794960]

約数ペア:

[(1, 128794960), (2, 64397480), (4, 32198740), (5, 25758992), (7, 18399280), (8, 16099370), (10, 12879496), (14, 9199640), (16, 8049685), (20, 6439748), (28, 4599820), (35, 3679856), (40, 3219874), (56, 2299910), (70, 1839928), (80, 1609937), (112, 1149955), (140, 919964), (280, 459982), (349, 369040), (560, 229991), (659, 195440), (698, 184520), (1318, 97720), (1396, 92260), (1745, 73808), (2443, 52720), (2636, 48860), (2792, 46130), (3295, 39088), (3490, 36904), (4613, 27920), (4886, 26360), (5272, 24430), (5584, 23065), (6590, 19544), (6980, 18452), (9226, 13960), (9772, 13180), (10544, 12215)]