40720257

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{523}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 60654048

約数和(自身を除く): 19933791

約数列:

[1, 3, 9, 41, 123, 211, 369, 523, 633, 1569, 1899, 4707, 8651, 21443, 25953, 64329, 77859, 110353, 192987, 331059, 993177, 4524473, 13573419, 40720257]

約数ペア:

[(1, 40720257), (3, 13573419), (9, 4524473), (41, 993177), (123, 331059), (211, 192987), (369, 110353), (523, 77859), (633, 64329), (1569, 25953), (1899, 21443), (4707, 8651)]