19958902868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{35911}}^1$

素因数の和:36108

約数の個数: 48

約数和(自身を含む): 37647267840

約数和(自身を除く): 17688364972

約数列:

[1, 2, 4, 19, 38, 71, 76, 103, 142, 206, 284, 412, 1349, 1957, 2698, 3914, 5396, 7313, 7828, 14626, 29252, 35911, 71822, 138947, 143644, 277894, 555788, 682309, 1364618, 2549681, 2729236, 3698833, 5099362, 7397666, 10198724, 14795332, 48443939, 70277827, 96887878, 140555654, 193775756, 262617143, 281111308, 525234286, 1050468572, 4989725717, 9979451434, 19958902868]

約数ペア:

[(1, 19958902868), (2, 9979451434), (4, 4989725717), (19, 1050468572), (38, 525234286), (71, 281111308), (76, 262617143), (103, 193775756), (142, 140555654), (206, 96887878), (284, 70277827), (412, 48443939), (1349, 14795332), (1957, 10198724), (2698, 7397666), (3914, 5099362), (5396, 3698833), (7313, 2729236), (7828, 2549681), (14626, 1364618), (29252, 682309), (35911, 555788), (71822, 277894), (138947, 143644)]