207957040

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{5107}}^1$

素因数の和:5629

約数の個数: 40

約数和(自身を含む): 484544880

約数和(自身を除く): 276587840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 4072, 5090, 5107, 8144, 10180, 10214, 20360, 20428, 25535, 40720, 40856, 51070, 81712, 102140, 204280, 408560, 2599463, 5198926, 10397852, 12997315, 20795704, 25994630, 41591408, 51989260, 103978520, 207957040]

約数ペア:

[(1, 207957040), (2, 103978520), (4, 51989260), (5, 41591408), (8, 25994630), (10, 20795704), (16, 12997315), (20, 10397852), (40, 5198926), (80, 2599463), (509, 408560), (1018, 204280), (2036, 102140), (2545, 81712), (4072, 51070), (5090, 40856), (5107, 40720), (8144, 25535), (10180, 20428), (10214, 20360)]