13978040

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4787}}^1$

素因数の和:4871

約数の個数: 32

約数和(自身を含む): 31888080

約数和(自身を除く): 17910040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 4787, 9574, 19148, 23935, 38296, 47870, 95740, 191480, 349451, 698902, 1397804, 1747255, 2795608, 3494510, 6989020, 13978040]

約数ペア:

[(1, 13978040), (2, 6989020), (4, 3494510), (5, 2795608), (8, 1747255), (10, 1397804), (20, 698902), (40, 349451), (73, 191480), (146, 95740), (292, 47870), (365, 38296), (584, 23935), (730, 19148), (1460, 9574), (2920, 4787)]