278399884

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{6469}}^1$

素因数の和:6562

約数の個数: 48

約数和(自身を含む): 586958400

約数和(自身を除く): 308558516

約数列:

[1, 2, 4, 7, 14, 28, 29, 53, 58, 106, 116, 203, 212, 371, 406, 742, 812, 1484, 1537, 3074, 6148, 6469, 10759, 12938, 21518, 25876, 43036, 45283, 90566, 181132, 187601, 342857, 375202, 685714, 750404, 1313207, 1371428, 2399999, 2626414, 4799998, 5252828, 9599996, 9942853, 19885706, 39771412, 69599971, 139199942, 278399884]

約数ペア:

[(1, 278399884), (2, 139199942), (4, 69599971), (7, 39771412), (14, 19885706), (28, 9942853), (29, 9599996), (53, 5252828), (58, 4799998), (106, 2626414), (116, 2399999), (203, 1371428), (212, 1313207), (371, 750404), (406, 685714), (742, 375202), (812, 342857), (1484, 187601), (1537, 181132), (3074, 90566), (6148, 45283), (6469, 43036), (10759, 25876), (12938, 21518)]