20770945

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:601

約数の個数: 24

約数和(自身を含む): 27616896

約数和(自身を除く): 6845951

約数列:

[1, 5, 13, 47, 65, 169, 235, 523, 611, 845, 2615, 3055, 6799, 7943, 24581, 33995, 39715, 88387, 122905, 319553, 441935, 1597765, 4154189, 20770945]

約数ペア:

[(1, 20770945), (5, 4154189), (13, 1597765), (47, 441935), (65, 319553), (169, 122905), (235, 88387), (523, 39715), (611, 33995), (845, 24581), (2615, 7943), (3055, 6799)]