81295025

素因数分解:

$5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{4111}}^1$

素因数の和:4241

約数の個数: 24

約数和(自身を含む): 116254464

約数和(自身を除く): 34959439

約数列:

[1, 5, 7, 25, 35, 113, 175, 565, 791, 2825, 3955, 4111, 19775, 20555, 28777, 102775, 143885, 464543, 719425, 2322715, 3251801, 11613575, 16259005, 81295025]

約数ペア:

[(1, 81295025), (5, 16259005), (7, 11613575), (25, 3251801), (35, 2322715), (113, 719425), (175, 464543), (565, 143885), (791, 102775), (2825, 28777), (3955, 20555), (4111, 19775)]