105505520

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2591}}^1$

素因数の和:3113

約数の個数: 40

約数和(自身を含む): 245877120

約数和(自身を除く): 140371600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 2591, 4072, 5090, 5182, 8144, 10180, 10364, 12955, 20360, 20728, 25910, 40720, 41456, 51820, 103640, 207280, 1318819, 2637638, 5275276, 6594095, 10550552, 13188190, 21101104, 26376380, 52752760, 105505520]

約数ペア:

[(1, 105505520), (2, 52752760), (4, 26376380), (5, 21101104), (8, 13188190), (10, 10550552), (16, 6594095), (20, 5275276), (40, 2637638), (80, 1318819), (509, 207280), (1018, 103640), (2036, 51820), (2545, 41456), (2591, 40720), (4072, 25910), (5090, 20728), (5182, 20360), (8144, 12955), (10180, 10364)]