7875

素因数分解:

$3^2\times 5^3\times 7^1$

素因数の和:28

約数の個数: 24

約数和(自身を含む): 16224

約数和(自身を除く): 8349

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2625, 7875]

約数ペア:

[(1, 7875), (3, 2625), (5, 1575), (7, 1125), (9, 875), (15, 525), (21, 375), (25, 315), (35, 225), (45, 175), (63, 125), (75, 105)]