408072040

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{14389}}^1$

素因数の和:15109

約数の個数: 32

約数和(自身を含む): 919521000

約数和(自身を除く): 511448960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 1418, 2836, 3545, 5672, 7090, 14180, 14389, 28360, 28778, 57556, 71945, 115112, 143890, 287780, 575560, 10201801, 20403602, 40807204, 51009005, 81614408, 102018010, 204036020, 408072040]

約数ペア:

[(1, 408072040), (2, 204036020), (4, 102018010), (5, 81614408), (8, 51009005), (10, 40807204), (20, 20403602), (40, 10201801), (709, 575560), (1418, 287780), (2836, 143890), (3545, 115112), (5672, 71945), (7090, 57556), (14180, 28778), (14389, 28360)]