489804560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{874651}}^1$

素因数の和:874671

約数の個数: 40

約数和(自身を含む): 1301482176

約数和(自身を除く): 811677616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 874651, 1749302, 3498604, 4373255, 6122557, 6997208, 8746510, 12245114, 13994416, 17493020, 24490228, 30612785, 34986040, 48980456, 61225570, 69972080, 97960912, 122451140, 244902280, 489804560]

約数ペア:

[(1, 489804560), (2, 244902280), (4, 122451140), (5, 97960912), (7, 69972080), (8, 61225570), (10, 48980456), (14, 34986040), (16, 30612785), (20, 24490228), (28, 17493020), (35, 13994416), (40, 12245114), (56, 8746510), (70, 6997208), (80, 6122557), (112, 4373255), (140, 3498604), (280, 1749302), (560, 874651)]