56784040

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2789}}^1$

素因数の和:3309

約数の個数: 32

約数和(自身を含む): 128061000

約数和(自身を除く): 71276960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 2789, 4072, 5090, 5578, 10180, 11156, 13945, 20360, 22312, 27890, 55780, 111560, 1419601, 2839202, 5678404, 7098005, 11356808, 14196010, 28392020, 56784040]

約数ペア:

[(1, 56784040), (2, 28392020), (4, 14196010), (5, 11356808), (8, 7098005), (10, 5678404), (20, 2839202), (40, 1419601), (509, 111560), (1018, 55780), (2036, 27890), (2545, 22312), (2789, 20360), (4072, 13945), (5090, 11156), (5578, 10180)]