78428375

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{8837}}^1$

素因数の和:8923

約数の個数: 16

約数和(自身を含む): 99268416

約数和(自身を除く): 20840041

約数列:

[1, 5, 25, 71, 125, 355, 1775, 8837, 8875, 44185, 220925, 627427, 1104625, 3137135, 15685675, 78428375]

約数ペア:

[(1, 78428375), (5, 15685675), (25, 3137135), (71, 1104625), (125, 627427), (355, 220925), (1775, 44185), (8837, 8875)]