2693740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 6580224

約数和(自身を除く): 3886484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 271, 284, 355, 497, 542, 710, 994, 1084, 1355, 1420, 1897, 1988, 2485, 2710, 3794, 4970, 5420, 7588, 9485, 9940, 18970, 19241, 37940, 38482, 76964, 96205, 134687, 192410, 269374, 384820, 538748, 673435, 1346870, 2693740]

約数ペア:

[(1, 2693740), (2, 1346870), (4, 673435), (5, 538748), (7, 384820), (10, 269374), (14, 192410), (20, 134687), (28, 96205), (35, 76964), (70, 38482), (71, 37940), (140, 19241), (142, 18970), (271, 9940), (284, 9485), (355, 7588), (497, 5420), (542, 4970), (710, 3794), (994, 2710), (1084, 2485), (1355, 1988), (1420, 1897)]