20705280

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{337}}^1$

素因数の和:369

約数の個数: 104

約数和(自身を含む): 66445392

約数和(自身を除く): 45740112

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 337, 384, 480, 512, 640, 674, 768, 960, 1011, 1024, 1280, 1348, 1536, 1685, 1920, 2022, 2048, 2560, 2696, 3072, 3370, 3840, 4044, 4096, 5055, 5120, 5392, 6144, 6740, 7680, 8088, 10110, 10240, 10784, 12288, 13480, 15360, 16176, 20220, 20480, 21568, 26960, 30720, 32352, 40440, 43136, 53920, 61440, 64704, 80880, 86272, 107840, 129408, 161760, 172544, 215680, 258816, 323520, 345088, 431360, 517632, 647040, 690176, 862720, 1035264, 1294080, 1380352, 1725440, 2070528, 2588160, 3450880, 4141056, 5176320, 6901760, 10352640, 20705280]

約数ペア:

[(1, 20705280), (2, 10352640), (3, 6901760), (4, 5176320), (5, 4141056), (6, 3450880), (8, 2588160), (10, 2070528), (12, 1725440), (15, 1380352), (16, 1294080), (20, 1035264), (24, 862720), (30, 690176), (32, 647040), (40, 517632), (48, 431360), (60, 345088), (64, 323520), (80, 258816), (96, 215680), (120, 172544), (128, 161760), (160, 129408), (192, 107840), (240, 86272), (256, 80880), (320, 64704), (337, 61440), (384, 53920), (480, 43136), (512, 40440), (640, 32352), (674, 30720), (768, 26960), (960, 21568), (1011, 20480), (1024, 20220), (1280, 16176), (1348, 15360), (1536, 13480), (1685, 12288), (1920, 10784), (2022, 10240), (2048, 10110), (2560, 8088), (2696, 7680), (3072, 6740), (3370, 6144), (3840, 5392), (4044, 5120), (4096, 5055)]