81954505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{1801}}^1$

素因数の和:2304

約数の個数: 16

約数和(自身を含む): 103795200

約数和(自身を除く): 21840695

約数列:

[1, 5, 19, 95, 479, 1801, 2395, 9005, 9101, 34219, 45505, 171095, 862679, 4313395, 16390901, 81954505]

約数ペア:

[(1, 81954505), (5, 16390901), (19, 4313395), (95, 862679), (479, 171095), (1801, 45505), (2395, 34219), (9005, 9101)]