20161563275

素因数分解:

$5^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{153817}}^1$

素因数の和:153948

約数の個数: 36

約数和(自身を含む): 29354011848

約数和(自身を除く): 9192448573

約数列:

[1, 5, 7, 25, 35, 49, 107, 175, 245, 535, 749, 1225, 2675, 3745, 5243, 18725, 26215, 131075, 153817, 769085, 1076719, 3845425, 5383595, 7537033, 16458419, 26917975, 37685165, 82292095, 115208933, 188425825, 411460475, 576044665, 806462531, 2880223325, 4032312655, 20161563275]

約数ペア:

[(1, 20161563275), (5, 4032312655), (7, 2880223325), (25, 806462531), (35, 576044665), (49, 411460475), (107, 188425825), (175, 115208933), (245, 82292095), (535, 37685165), (749, 26917975), (1225, 16458419), (2675, 7537033), (3745, 5383595), (5243, 3845425), (18725, 1076719), (26215, 769085), (131075, 153817)]