20802850

素因数分解:

$2^1\times 5^2\times {\mathrm{563}}^1\times {\mathrm{739}}^1$

素因数の和:1314

約数の個数: 24

約数和(自身を含む): 38814480

約数和(自身を除く): 18011630

約数列:

[1, 2, 5, 10, 25, 50, 563, 739, 1126, 1478, 2815, 3695, 5630, 7390, 14075, 18475, 28150, 36950, 416057, 832114, 2080285, 4160570, 10401425, 20802850]

約数ペア:

[(1, 20802850), (2, 10401425), (5, 4160570), (10, 2080285), (25, 832114), (50, 416057), (563, 36950), (739, 28150), (1126, 18475), (1478, 14075), (2815, 7390), (3695, 5630)]