20161236475

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{248981}}^1$

素因数の和:249111

約数の個数: 24

約数和(自身を含む): 25933965120

約数和(自身を除く): 5772728645

約数列:

[1, 5, 25, 41, 79, 205, 395, 1025, 1975, 3239, 16195, 80975, 248981, 1244905, 6224525, 10208221, 19669499, 51041105, 98347495, 255205525, 491737475, 806449459, 4032247295, 20161236475]

約数ペア:

[(1, 20161236475), (5, 4032247295), (25, 806449459), (41, 491737475), (79, 255205525), (205, 98347495), (395, 51041105), (1025, 19669499), (1975, 10208221), (3239, 6224525), (16195, 1244905), (80975, 248981)]