398246888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1373}}^1\times {\mathrm{2789}}^1$

素因数の和:4181

約数の個数: 32

約数和(自身を含む): 805026600

約数和(自身を除く): 406779712

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1373, 2746, 2789, 5492, 5578, 10984, 11156, 17849, 22312, 35698, 36257, 71396, 72514, 142792, 145028, 290056, 3829297, 7658594, 15317188, 30634376, 49780861, 99561722, 199123444, 398246888]

約数ペア:

[(1, 398246888), (2, 199123444), (4, 99561722), (8, 49780861), (13, 30634376), (26, 15317188), (52, 7658594), (104, 3829297), (1373, 290056), (2746, 145028), (2789, 142792), (5492, 72514), (5578, 71396), (10984, 36257), (11156, 35698), (17849, 22312)]