20100455

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1498

約数の個数: 16

約数和(自身を含む): 25075008

約数和(自身を除く): 4974553

約数列:

[1, 5, 41, 71, 205, 355, 1381, 2911, 6905, 14555, 56621, 98051, 283105, 490255, 4020091, 20100455]

約数ペア:

[(1, 20100455), (5, 4020091), (41, 490255), (71, 283105), (205, 98051), (355, 56621), (1381, 14555), (2911, 6905)]