21824120

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1619}}^1$

素因数の和:1967

約数の個数: 32

約数和(自身を含む): 49280400

約数和(自身を除く): 27456280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 1348, 1619, 1685, 2696, 3238, 3370, 6476, 6740, 8095, 12952, 13480, 16190, 32380, 64760, 545603, 1091206, 2182412, 2728015, 4364824, 5456030, 10912060, 21824120]

約数ペア:

[(1, 21824120), (2, 10912060), (4, 5456030), (5, 4364824), (8, 2728015), (10, 2182412), (20, 1091206), (40, 545603), (337, 64760), (674, 32380), (1348, 16190), (1619, 13480), (1685, 12952), (2696, 8095), (3238, 6740), (3370, 6476)]