18916925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 24748416

約数和(自身を除く): 5831491

約数列:

[1, 5, 23, 25, 115, 167, 197, 575, 835, 985, 3841, 4175, 4531, 4925, 19205, 22655, 32899, 96025, 113275, 164495, 756677, 822475, 3783385, 18916925]

約数ペア:

[(1, 18916925), (5, 3783385), (23, 822475), (25, 756677), (115, 164495), (167, 113275), (197, 96025), (575, 32899), (835, 22655), (985, 19205), (3841, 4925), (4175, 4531)]