20453825

素因数分解:

$5^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{283}}^1$

素因数の和:366

約数の個数: 36

約数和(自身を含む): 30109680

約数和(自身を除く): 9655855

約数列:

[1, 5, 7, 25, 35, 49, 59, 175, 245, 283, 295, 413, 1225, 1415, 1475, 1981, 2065, 2891, 7075, 9905, 10325, 13867, 14455, 16697, 49525, 69335, 72275, 83485, 116879, 346675, 417425, 584395, 818153, 2921975, 4090765, 20453825]

約数ペア:

[(1, 20453825), (5, 4090765), (7, 2921975), (25, 818153), (35, 584395), (49, 417425), (59, 346675), (175, 116879), (245, 83485), (283, 72275), (295, 69335), (413, 49525), (1225, 16697), (1415, 14455), (1475, 13867), (1981, 10325), (2065, 9905), (2891, 7075)]