56856520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{809}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 146966400

約数和(自身を除く): 90109880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 809, 1004, 1255, 1618, 1757, 2008, 2510, 3236, 3514, 4045, 5020, 5663, 6472, 7028, 8090, 8785, 10040, 11326, 14056, 16180, 17570, 22652, 28315, 32360, 35140, 45304, 56630, 70280, 113260, 203059, 226520, 406118, 812236, 1015295, 1421413, 1624472, 2030590, 2842826, 4061180, 5685652, 7107065, 8122360, 11371304, 14214130, 28428260, 56856520]

約数ペア:

[(1, 56856520), (2, 28428260), (4, 14214130), (5, 11371304), (7, 8122360), (8, 7107065), (10, 5685652), (14, 4061180), (20, 2842826), (28, 2030590), (35, 1624472), (40, 1421413), (56, 1015295), (70, 812236), (140, 406118), (251, 226520), (280, 203059), (502, 113260), (809, 70280), (1004, 56630), (1255, 45304), (1618, 35140), (1757, 32360), (2008, 28315), (2510, 22652), (3236, 17570), (3514, 16180), (4045, 14056), (5020, 11326), (5663, 10040), (6472, 8785), (7028, 8090)]