138221135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2909}}^1$

素因数の和:2987

約数の個数: 32

約数和(自身を含む): 193596480

約数和(自身を除く): 55375345

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 731, 1105, 2795, 2909, 3655, 9503, 14545, 37817, 47515, 49453, 125087, 189085, 247265, 625435, 642889, 1626131, 2126479, 3214445, 8130655, 10632395, 27644227, 138221135]

約数ペア:

[(1, 138221135), (5, 27644227), (13, 10632395), (17, 8130655), (43, 3214445), (65, 2126479), (85, 1626131), (215, 642889), (221, 625435), (559, 247265), (731, 189085), (1105, 125087), (2795, 49453), (2909, 47515), (3655, 37817), (9503, 14545)]