13402885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 18437760

約数和(自身を除く): 5034875

約数列:

[1, 5, 17, 19, 43, 85, 95, 193, 215, 323, 731, 817, 965, 1615, 3281, 3655, 3667, 4085, 8299, 13889, 16405, 18335, 41495, 62339, 69445, 141083, 157681, 311695, 705415, 788405, 2680577, 13402885]

約数ペア:

[(1, 13402885), (5, 2680577), (17, 788405), (19, 705415), (43, 311695), (85, 157681), (95, 141083), (193, 69445), (215, 62339), (323, 41495), (731, 18335), (817, 16405), (965, 13889), (1615, 8299), (3281, 4085), (3655, 3667)]