78872125

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{8887}}^1$

素因数の和:8973

約数の個数: 16

約数和(自身を含む): 99830016

約数和(自身を除く): 20957891

約数列:

[1, 5, 25, 71, 125, 355, 1775, 8875, 8887, 44435, 222175, 630977, 1110875, 3154885, 15774425, 78872125]

約数ペア:

[(1, 78872125), (5, 15774425), (25, 3154885), (71, 1110875), (125, 630977), (355, 222175), (1775, 44435), (8875, 8887)]