139720070

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{313}}^1\times {\mathrm{911}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 293813568

約数和(自身を除く): 154093498

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 313, 490, 626, 911, 1565, 1822, 2191, 3130, 4382, 4555, 6377, 9110, 10955, 12754, 15337, 21910, 30674, 31885, 44639, 63770, 76685, 89278, 153370, 223195, 285143, 446390, 570286, 1425715, 1996001, 2851430, 3992002, 9980005, 13972007, 19960010, 27944014, 69860035, 139720070]

約数ペア:

[(1, 139720070), (2, 69860035), (5, 27944014), (7, 19960010), (10, 13972007), (14, 9980005), (35, 3992002), (49, 2851430), (70, 1996001), (98, 1425715), (245, 570286), (313, 446390), (490, 285143), (626, 223195), (911, 153370), (1565, 89278), (1822, 76685), (2191, 63770), (3130, 44639), (4382, 31885), (4555, 30674), (6377, 21910), (9110, 15337), (10955, 12754)]