66390625

素因数分解:

$5^6\times 7^1\times {\mathrm{607}}^1$

素因数の和:644

約数の個数: 28

約数和(自身を含む): 94998784

約数和(自身を除く): 28608159

約数列:

[1, 5, 7, 25, 35, 125, 175, 607, 625, 875, 3035, 3125, 4249, 4375, 15175, 15625, 21245, 21875, 75875, 106225, 109375, 379375, 531125, 1896875, 2655625, 9484375, 13278125, 66390625]

約数ペア:

[(1, 66390625), (5, 13278125), (7, 9484375), (25, 2655625), (35, 1896875), (125, 531125), (175, 379375), (607, 109375), (625, 106225), (875, 75875), (3035, 21875), (3125, 21245), (4249, 15625), (4375, 15175)]