20681360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36931}}^1$

素因数の和:36951

約数の個数: 40

約数和(自身を含む): 54954816

約数和(自身を除く): 34273456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36931, 73862, 147724, 184655, 258517, 295448, 369310, 517034, 590896, 738620, 1034068, 1292585, 1477240, 2068136, 2585170, 2954480, 4136272, 5170340, 10340680, 20681360]

約数ペア:

[(1, 20681360), (2, 10340680), (4, 5170340), (5, 4136272), (7, 2954480), (8, 2585170), (10, 2068136), (14, 1477240), (16, 1292585), (20, 1034068), (28, 738620), (35, 590896), (40, 517034), (56, 369310), (70, 295448), (80, 258517), (112, 184655), (140, 147724), (280, 73862), (560, 36931)]