15687140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1259}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 22415260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1259, 1780, 2492, 2518, 3115, 5036, 6230, 6295, 8813, 12460, 12590, 17626, 25180, 35252, 44065, 88130, 112051, 176260, 224102, 448204, 560255, 784357, 1120510, 1568714, 2241020, 3137428, 3921785, 7843570, 15687140]

約数ペア:

[(1, 15687140), (2, 7843570), (4, 3921785), (5, 3137428), (7, 2241020), (10, 1568714), (14, 1120510), (20, 784357), (28, 560255), (35, 448204), (70, 224102), (89, 176260), (140, 112051), (178, 88130), (356, 44065), (445, 35252), (623, 25180), (890, 17626), (1246, 12590), (1259, 12460), (1780, 8813), (2492, 6295), (2518, 6230), (3115, 5036)]