78282025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3919}}^1$

素因数の和:3993

約数の個数: 24

約数和(自身を含む): 104993280

約数和(自身を除く): 26711255

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 1175, 3919, 3995, 19595, 19975, 66623, 97975, 184193, 333115, 920965, 1665575, 3131281, 4604825, 15656405, 78282025]

約数ペア:

[(1, 78282025), (5, 15656405), (17, 4604825), (25, 3131281), (47, 1665575), (85, 920965), (235, 333115), (425, 184193), (799, 97975), (1175, 66623), (3919, 19975), (3995, 19595)]