121661440

素因数分解:

$2^{11}\times 5^1\times {\mathrm{109}}^2$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 294618870

約数和(自身を除く): 172957430

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 512, 545, 640, 872, 1024, 1090, 1280, 1744, 2048, 2180, 2560, 3488, 4360, 5120, 6976, 8720, 10240, 11881, 13952, 17440, 23762, 27904, 34880, 47524, 55808, 59405, 69760, 95048, 111616, 118810, 139520, 190096, 223232, 237620, 279040, 380192, 475240, 558080, 760384, 950480, 1116160, 1520768, 1900960, 3041536, 3801920, 6083072, 7603840, 12166144, 15207680, 24332288, 30415360, 60830720, 121661440]

約数ペア:

[(1, 121661440), (2, 60830720), (4, 30415360), (5, 24332288), (8, 15207680), (10, 12166144), (16, 7603840), (20, 6083072), (32, 3801920), (40, 3041536), (64, 1900960), (80, 1520768), (109, 1116160), (128, 950480), (160, 760384), (218, 558080), (256, 475240), (320, 380192), (436, 279040), (512, 237620), (545, 223232), (640, 190096), (872, 139520), (1024, 118810), (1090, 111616), (1280, 95048), (1744, 69760), (2048, 59405), (2180, 55808), (2560, 47524), (3488, 34880), (4360, 27904), (5120, 23762), (6976, 17440), (8720, 13952), (10240, 11881)]