16291255625

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{840839}}^1$

素因数の和:840890

約数の個数: 20

約数和(自身を含む): 21014273280

約数和(自身を除く): 4723017655

約数列:

[1, 5, 25, 31, 125, 155, 625, 775, 3875, 19375, 840839, 4204195, 21020975, 26066009, 105104875, 130330045, 525524375, 651650225, 3258251125, 16291255625]

約数ペア:

[(1, 16291255625), (5, 3258251125), (25, 651650225), (31, 525524375), (125, 130330045), (155, 105104875), (625, 26066009), (775, 21020975), (3875, 4204195), (19375, 840839)]