20168480

素因数分解:

$2^5\times 5^1\times {\mathrm{233}}^1\times {\mathrm{541}}^1$

素因数の和:789

約数の個数: 48

約数和(自身を含む): 47940984

約数和(自身を除く): 27772504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 233, 466, 541, 932, 1082, 1165, 1864, 2164, 2330, 2705, 3728, 4328, 4660, 5410, 7456, 8656, 9320, 10820, 17312, 18640, 21640, 37280, 43280, 86560, 126053, 252106, 504212, 630265, 1008424, 1260530, 2016848, 2521060, 4033696, 5042120, 10084240, 20168480]

約数ペア:

[(1, 20168480), (2, 10084240), (4, 5042120), (5, 4033696), (8, 2521060), (10, 2016848), (16, 1260530), (20, 1008424), (32, 630265), (40, 504212), (80, 252106), (160, 126053), (233, 86560), (466, 43280), (541, 37280), (932, 21640), (1082, 18640), (1165, 17312), (1864, 10820), (2164, 9320), (2330, 8656), (2705, 7456), (3728, 5410), (4328, 4660)]