81384625

素因数分解:

$5^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 116842752

約数和(自身を除く): 35458127

約数列:

[1, 5, 7, 25, 35, 125, 175, 281, 331, 875, 1405, 1655, 1967, 2317, 7025, 8275, 9835, 11585, 35125, 41375, 49175, 57925, 93011, 245875, 289625, 465055, 651077, 2325275, 3255385, 11626375, 16276925, 81384625]

約数ペア:

[(1, 81384625), (5, 16276925), (7, 11626375), (25, 3255385), (35, 2325275), (125, 651077), (175, 465055), (281, 289625), (331, 245875), (875, 93011), (1405, 57925), (1655, 49175), (1967, 41375), (2317, 35125), (7025, 11585), (8275, 9835)]