21628260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120157}}^1$

素因数の和:120172

約数の個数: 36

約数和(自身を含む): 65606268

約数和(自身を除く): 43978008

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120157, 240314, 360471, 480628, 600785, 720942, 1081413, 1201570, 1441884, 1802355, 2162826, 2403140, 3604710, 4325652, 5407065, 7209420, 10814130, 21628260]

約数ペア:

[(1, 21628260), (2, 10814130), (3, 7209420), (4, 5407065), (5, 4325652), (6, 3604710), (9, 2403140), (10, 2162826), (12, 1802355), (15, 1441884), (18, 1201570), (20, 1081413), (30, 720942), (36, 600785), (45, 480628), (60, 360471), (90, 240314), (180, 120157)]