161806925

素因数分解:

$5^2\times 7^1\times {\mathrm{463}}^1\times {\mathrm{1997}}^1$

素因数の和:2477

約数の個数: 24

約数和(自身を含む): 229913856

約数和(自身を除く): 68106931

約数列:

[1, 5, 7, 25, 35, 175, 463, 1997, 2315, 3241, 9985, 11575, 13979, 16205, 49925, 69895, 81025, 349475, 924611, 4623055, 6472277, 23115275, 32361385, 161806925]

約数ペア:

[(1, 161806925), (5, 32361385), (7, 23115275), (25, 6472277), (35, 4623055), (175, 924611), (463, 349475), (1997, 81025), (2315, 69895), (3241, 49925), (9985, 16205), (11575, 13979)]