18486880

素因数分解:

$2^5\times 5^1\times {\mathrm{227}}^1\times {\mathrm{509}}^1$

素因数の和:751

約数の個数: 48

約数和(自身を含む): 43953840

約数和(自身を除く): 25466960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 227, 454, 509, 908, 1018, 1135, 1816, 2036, 2270, 2545, 3632, 4072, 4540, 5090, 7264, 8144, 9080, 10180, 16288, 18160, 20360, 36320, 40720, 81440, 115543, 231086, 462172, 577715, 924344, 1155430, 1848688, 2310860, 3697376, 4621720, 9243440, 18486880]

約数ペア:

[(1, 18486880), (2, 9243440), (4, 4621720), (5, 3697376), (8, 2310860), (10, 1848688), (16, 1155430), (20, 924344), (32, 577715), (40, 462172), (80, 231086), (160, 115543), (227, 81440), (454, 40720), (509, 36320), (908, 20360), (1018, 18160), (1135, 16288), (1816, 10180), (2036, 9080), (2270, 8144), (2545, 7264), (3632, 5090), (4072, 4540)]