20577775

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 26498304

約数和(自身を除く): 5920529

約数列:

[1, 5, 25, 47, 83, 211, 235, 415, 1055, 1175, 2075, 3901, 5275, 9917, 17513, 19505, 49585, 87565, 97525, 247925, 437825, 823111, 4115555, 20577775]

約数ペア:

[(1, 20577775), (5, 4115555), (25, 823111), (47, 437825), (83, 247925), (211, 97525), (235, 87565), (415, 49585), (1055, 19505), (1175, 17513), (2075, 9917), (3901, 5275)]