51239120

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2381}}^1$

素因数の和:2663

約数の個数: 40

約数和(自身を含む): 119624040

約数和(自身を除く): 68384920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 1076, 1345, 2152, 2381, 2690, 4304, 4762, 5380, 9524, 10760, 11905, 19048, 21520, 23810, 38096, 47620, 95240, 190480, 640489, 1280978, 2561956, 3202445, 5123912, 6404890, 10247824, 12809780, 25619560, 51239120]

約数ペア:

[(1, 51239120), (2, 25619560), (4, 12809780), (5, 10247824), (8, 6404890), (10, 5123912), (16, 3202445), (20, 2561956), (40, 1280978), (80, 640489), (269, 190480), (538, 95240), (1076, 47620), (1345, 38096), (2152, 23810), (2381, 21520), (2690, 19048), (4304, 11905), (4762, 10760), (5380, 9524)]