20706880

素因数分解:

$2^6\times 5^1\times {\mathrm{64709}}^1$

素因数の和:64726

約数の個数: 28

約数和(自身を含む): 49309020

約数和(自身を除く): 28602140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64709, 129418, 258836, 323545, 517672, 647090, 1035344, 1294180, 2070688, 2588360, 4141376, 5176720, 10353440, 20706880]

約数ペア:

[(1, 20706880), (2, 10353440), (4, 5176720), (5, 4141376), (8, 2588360), (10, 2070688), (16, 1294180), (20, 1035344), (32, 647090), (40, 517672), (64, 323545), (80, 258836), (160, 129418), (320, 64709)]