820900248

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{31123}}^1$

素因数の和:31296

約数の個数: 64

約数和(自身を含む): 2360444160

約数和(自身を除く): 1539543912

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 157, 168, 314, 471, 628, 942, 1099, 1256, 1884, 2198, 3297, 3768, 4396, 6594, 8792, 13188, 26376, 31123, 62246, 93369, 124492, 186738, 217861, 248984, 373476, 435722, 653583, 746952, 871444, 1307166, 1742888, 2614332, 4886311, 5228664, 9772622, 14658933, 19545244, 29317866, 34204177, 39090488, 58635732, 68408354, 102612531, 117271464, 136816708, 205225062, 273633416, 410450124, 820900248]

約数ペア:

[(1, 820900248), (2, 410450124), (3, 273633416), (4, 205225062), (6, 136816708), (7, 117271464), (8, 102612531), (12, 68408354), (14, 58635732), (21, 39090488), (24, 34204177), (28, 29317866), (42, 19545244), (56, 14658933), (84, 9772622), (157, 5228664), (168, 4886311), (314, 2614332), (471, 1742888), (628, 1307166), (942, 871444), (1099, 746952), (1256, 653583), (1884, 435722), (2198, 373476), (3297, 248984), (3768, 217861), (4396, 186738), (6594, 124492), (8792, 93369), (13188, 62246), (26376, 31123)]