20653400

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2791}}^1$

素因数の和:2844

約数の個数: 48

約数和(自身を含む): 49334640

約数和(自身を除く): 28681240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2791, 3700, 5582, 7400, 11164, 13955, 22328, 27910, 55820, 69775, 103267, 111640, 139550, 206534, 279100, 413068, 516335, 558200, 826136, 1032670, 2065340, 2581675, 4130680, 5163350, 10326700, 20653400]

約数ペア:

[(1, 20653400), (2, 10326700), (4, 5163350), (5, 4130680), (8, 2581675), (10, 2065340), (20, 1032670), (25, 826136), (37, 558200), (40, 516335), (50, 413068), (74, 279100), (100, 206534), (148, 139550), (185, 111640), (200, 103267), (296, 69775), (370, 55820), (740, 27910), (925, 22328), (1480, 13955), (1850, 11164), (2791, 7400), (3700, 5582)]