28972875

素因数分解:

$3^1\times 5^3\times {\mathrm{77261}}^1$

素因数の和:77279

約数の個数: 16

約数和(自身を含む): 48211488

約数和(自身を除く): 19238613

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 77261, 231783, 386305, 1158915, 1931525, 5794575, 9657625, 28972875]

約数ペア:

[(1, 28972875), (3, 9657625), (5, 5794575), (15, 1931525), (25, 1158915), (75, 386305), (125, 231783), (375, 77261)]