18357025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{919}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 24641280

約数和(自身を除く): 6284255

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 919, 1175, 3995, 4595, 15623, 19975, 22975, 43193, 78115, 215965, 390575, 734281, 1079825, 3671405, 18357025]

約数ペア:

[(1, 18357025), (5, 3671405), (17, 1079825), (25, 734281), (47, 390575), (85, 215965), (235, 78115), (425, 43193), (799, 22975), (919, 19975), (1175, 15623), (3995, 4595)]