19245688

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 45504000

約数和(自身を除く): 26258312

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 157, 199, 308, 314, 398, 616, 628, 796, 1099, 1256, 1393, 1592, 1727, 2189, 2198, 2786, 3454, 4378, 4396, 5572, 6908, 8756, 8792, 11144, 12089, 13816, 15323, 17512, 24178, 30646, 31243, 48356, 61292, 62486, 96712, 122584, 124972, 218701, 249944, 343673, 437402, 687346, 874804, 1374692, 1749608, 2405711, 2749384, 4811422, 9622844, 19245688]

約数ペア:

[(1, 19245688), (2, 9622844), (4, 4811422), (7, 2749384), (8, 2405711), (11, 1749608), (14, 1374692), (22, 874804), (28, 687346), (44, 437402), (56, 343673), (77, 249944), (88, 218701), (154, 124972), (157, 122584), (199, 96712), (308, 62486), (314, 61292), (398, 48356), (616, 31243), (628, 30646), (796, 24178), (1099, 17512), (1256, 15323), (1393, 13816), (1592, 12089), (1727, 11144), (2189, 8792), (2198, 8756), (2786, 6908), (3454, 5572), (4378, 4396)]