168519380

素因数分解:

$2^2\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{4049}}^1$

素因数の和:6139

約数の個数: 24

約数和(自身を含む): 354148200

約数和(自身を除く): 185628820

約数列:

[1, 2, 4, 5, 10, 20, 2081, 4049, 4162, 8098, 8324, 10405, 16196, 20245, 20810, 40490, 41620, 80980, 8425969, 16851938, 33703876, 42129845, 84259690, 168519380]

約数ペア:

[(1, 168519380), (2, 84259690), (4, 42129845), (5, 33703876), (10, 16851938), (20, 8425969), (2081, 80980), (4049, 41620), (4162, 40490), (8098, 20810), (8324, 20245), (10405, 16196)]