20086775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{313}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 26632224

約数和(自身を除く): 6545449

約数列:

[1, 5, 17, 25, 85, 151, 313, 425, 755, 1565, 2567, 3775, 5321, 7825, 12835, 26605, 47263, 64175, 133025, 236315, 803471, 1181575, 4017355, 20086775]

約数ペア:

[(1, 20086775), (5, 4017355), (17, 1181575), (25, 803471), (85, 236315), (151, 133025), (313, 64175), (425, 47263), (755, 26605), (1565, 12835), (2567, 7825), (3775, 5321)]