20199421784

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1\times {\mathrm{3361}}^1$

素因数の和:3732

約数の個数: 64

約数和(自身を含む): 39497582880

約数和(自身を除く): 19298161096

約数列:

[1, 2, 4, 8, 41, 73, 82, 146, 164, 251, 292, 328, 502, 584, 1004, 2008, 2993, 3361, 5986, 6722, 10291, 11972, 13444, 18323, 20582, 23944, 26888, 36646, 41164, 73292, 82328, 137801, 146584, 245353, 275602, 490706, 551204, 751243, 843611, 981412, 1102408, 1502486, 1687222, 1962824, 3004972, 3374444, 6009944, 6748888, 10059473, 20118946, 34588051, 40237892, 61583603, 69176102, 80475784, 123167206, 138352204, 246334412, 276704408, 492668824, 2524927723, 5049855446, 10099710892, 20199421784]

約数ペア:

[(1, 20199421784), (2, 10099710892), (4, 5049855446), (8, 2524927723), (41, 492668824), (73, 276704408), (82, 246334412), (146, 138352204), (164, 123167206), (251, 80475784), (292, 69176102), (328, 61583603), (502, 40237892), (584, 34588051), (1004, 20118946), (2008, 10059473), (2993, 6748888), (3361, 6009944), (5986, 3374444), (6722, 3004972), (10291, 1962824), (11972, 1687222), (13444, 1502486), (18323, 1102408), (20582, 981412), (23944, 843611), (26888, 751243), (36646, 551204), (41164, 490706), (73292, 275602), (82328, 245353), (137801, 146584)]