2489240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4787}}^1$

素因数の和:4811

約数の個数: 32

約数和(自身を含む): 6032880

約数和(自身を除く): 3543640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4787, 9574, 19148, 23935, 38296, 47870, 62231, 95740, 124462, 191480, 248924, 311155, 497848, 622310, 1244620, 2489240]

約数ペア:

[(1, 2489240), (2, 1244620), (4, 622310), (5, 497848), (8, 311155), (10, 248924), (13, 191480), (20, 124462), (26, 95740), (40, 62231), (52, 47870), (65, 38296), (104, 23935), (130, 19148), (260, 9574), (520, 4787)]