21508712440

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{747869}}^1$

素因数の和:748599

約数の個数: 32

約数和(自身を含む): 48461976000

約数和(自身を除く): 26953263560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2876, 3595, 5752, 7190, 14380, 28760, 747869, 1495738, 2991476, 3739345, 5982952, 7478690, 14957380, 29914760, 537717811, 1075435622, 2150871244, 2688589055, 4301742488, 5377178110, 10754356220, 21508712440]

約数ペア:

[(1, 21508712440), (2, 10754356220), (4, 5377178110), (5, 4301742488), (8, 2688589055), (10, 2150871244), (20, 1075435622), (40, 537717811), (719, 29914760), (1438, 14957380), (2876, 7478690), (3595, 5982952), (5752, 3739345), (7190, 2991476), (14380, 1495738), (28760, 747869)]