20654080

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2017}}^1$

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 49582260

約数和(自身を除く): 28928180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2017, 2048, 2560, 4034, 5120, 8068, 10085, 10240, 16136, 20170, 32272, 40340, 64544, 80680, 129088, 161360, 258176, 322720, 516352, 645440, 1032704, 1290880, 2065408, 2581760, 4130816, 5163520, 10327040, 20654080]

約数ペア:

[(1, 20654080), (2, 10327040), (4, 5163520), (5, 4130816), (8, 2581760), (10, 2065408), (16, 1290880), (20, 1032704), (32, 645440), (40, 516352), (64, 322720), (80, 258176), (128, 161360), (160, 129088), (256, 80680), (320, 64544), (512, 40340), (640, 32272), (1024, 20170), (1280, 16136), (2017, 10240), (2048, 10085), (2560, 8068), (4034, 5120)]