31374280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1259}}^1$

素因数の和:1366

約数の個数: 64

約数和(自身を含む): 81648000

約数和(自身を除く): 50273720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1259, 1780, 2492, 2518, 3115, 3560, 4984, 5036, 6230, 6295, 8813, 10072, 12460, 12590, 17626, 24920, 25180, 35252, 44065, 50360, 70504, 88130, 112051, 176260, 224102, 352520, 448204, 560255, 784357, 896408, 1120510, 1568714, 2241020, 3137428, 3921785, 4482040, 6274856, 7843570, 15687140, 31374280]

約数ペア:

[(1, 31374280), (2, 15687140), (4, 7843570), (5, 6274856), (7, 4482040), (8, 3921785), (10, 3137428), (14, 2241020), (20, 1568714), (28, 1120510), (35, 896408), (40, 784357), (56, 560255), (70, 448204), (89, 352520), (140, 224102), (178, 176260), (280, 112051), (356, 88130), (445, 70504), (623, 50360), (712, 44065), (890, 35252), (1246, 25180), (1259, 24920), (1780, 17626), (2492, 12590), (2518, 12460), (3115, 10072), (3560, 8813), (4984, 6295), (5036, 6230)]