81688480

素因数分解:

$2^5\times 5^1\times {\mathrm{510553}}^1$

素因数の和:510568

約数の個数: 24

約数和(自身を含む): 192989412

約数和(自身を除く): 111300932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 510553, 1021106, 2042212, 2552765, 4084424, 5105530, 8168848, 10211060, 16337696, 20422120, 40844240, 81688480]

約数ペア:

[(1, 81688480), (2, 40844240), (4, 20422120), (5, 16337696), (8, 10211060), (10, 8168848), (16, 5105530), (20, 4084424), (32, 2552765), (40, 2042212), (80, 1021106), (160, 510553)]